JPH02149391A - Apparatus for treating waste liquid of photographic processing - Google Patents
Apparatus for treating waste liquid of photographic processingInfo
- Publication number
- JPH02149391A JPH02149391A JP30380088A JP30380088A JPH02149391A JP H02149391 A JPH02149391 A JP H02149391A JP 30380088 A JP30380088 A JP 30380088A JP 30380088 A JP30380088 A JP 30380088A JP H02149391 A JPH02149391 A JP H02149391A
- Authority
- JP
- Japan
- Prior art keywords
- concentrate
- waste liquid
- photographic processing
- processing waste
- accumulation
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 111
- 238000012545 processing Methods 0.000 title claims abstract description 111
- 239000002699 waste material Substances 0.000 title claims abstract description 97
- 239000012141 concentrate Substances 0.000 claims abstract description 110
- 238000009825 accumulation Methods 0.000 claims abstract description 35
- 238000001704 evaporation Methods 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 230000008020 evaporation Effects 0.000 abstract description 24
- 238000000034 method Methods 0.000 abstract description 9
- 238000000354 decomposition reaction Methods 0.000 abstract description 6
- 238000013021 overheating Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 238000001514 detection method Methods 0.000 description 17
- 238000000926 separation method Methods 0.000 description 15
- 235000019645 odor Nutrition 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 8
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 8
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- -1 silver halide Chemical class 0.000 description 2
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Photographic Processing Devices Using Wet Methods (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野コ
この発明は、写真用自動現像機による写真感光材料の現
像処理に伴い発生する廃液(以下、写真処理廃液ないし
廃液と略称)を蒸発処理する処理装置に係り、特に、自
動現像機内若しくは自動現像機の近傍に配置して処理す
るのに適した写真処理廃液の処理装置に関する。[Detailed Description of the Invention] [Industrial Field of Application] This invention deals with the evaporation treatment of waste liquid (hereinafter referred to as photographic processing waste liquid or waste liquid) generated during the processing of photographic light-sensitive materials by an automatic photographic processor. The present invention relates to a processing device, and particularly to a processing device for photographic processing waste liquid suitable for processing by being disposed in or near an automatic processor.
[従来の技術]
一般に、ハロゲン化銀写真感光材料の写真処理は、黒白
感光材料の場合には現像、定着、水洗等、カラー感光材
料の場合には発色現像、漂白定着(又は漂白、定着)、
水洗、安定化等の機能の1つ又は2つ以上を有する処理
液を用いた工程を組合せて行なわれている。[Prior Art] In general, photographic processing of silver halide photographic materials includes development, fixing, washing, etc. in the case of black and white materials, and color development, bleach-fixing (or bleaching, fixing) in the case of color photographic materials. ,
A combination of processes using a treatment liquid having one or more functions such as water washing and stabilization is carried out.
そして、多量の感光材料を処理する写真処理においては
、処理によって消費された成分を補充し一方、処理によ
って処理液中に溶出或いは蒸発によって濃化する成分(
例えば現像液における臭化物イオン、定着液における銀
錯塩のような)を除去して処理液成分を一定に保つこと
によって処理液の性能を一定に維持する手段が採られて
おり、補充のために補充液が処理液に補充され、写真処
理における濃厚化成分の除去のために処理液の一部が廃
棄されている。In photographic processing in which a large amount of light-sensitive material is processed, the components consumed during processing are replenished, while the components that are concentrated by elution or evaporation into the processing solution (
Measures are taken to maintain the performance of the processing solution at a constant level by removing bromide ions in the developing solution and silver complex salts in the fixing solution and keeping the processing solution components constant. The processing solution is replenished and a portion of the processing solution is discarded for removal of thickening components in photographic processing.
近年、補充液は水洗の補充液である水洗水を含めて公害
上や経済的理由から補充の量を大幅に減少させたシステ
ムに変わりつつあるが、写真処理廃液は自動現像機の処
理槽から廃液管によって導かれ、水洗水の廃液や自動現
像機の冷却水等で稀釈されて下水道等に廃棄されている
。In recent years, systems have been changing to systems in which the amount of replenishment fluid, including washing water, which is used as a replenishment fluid for washing, has been significantly reduced due to pollution and economic reasons, but photographic processing waste fluid is removed from the processing tank of automatic processors. It is led through a waste liquid pipe, diluted with waste liquid from washing water, cooling water from automatic processors, etc., and then disposed of in a sewer or the like.
しかしながら、近年の公害規制の強化により、水洗水や
冷却水の下水道や河川への廃棄は可能であるが、これら
以外の写真処理液[例えば、現像液、定着液、発色現像
液、漂白定着液(又は漂白液、定着液)、安定液等〕の
廃棄は、実質的に不可能となっている。このため、各写
真処理業者は廃液を専門の廃液処理業者に回収料金を払
って回収してもらったり、公害処理設備を設置したりし
ている。しかしながら、廃液処理業者に委託する方法は
、廃液を貯溜しておくのにかなりのスペースが必要とな
るし、またコスト的にも極めて高価である。さらに、公
害処理設備は初期投資(イニシャルコスト)が極めて大
きく、整備するのにかなり広大な場所を必要とする等の
欠点を有している。従って、一般には廃液回収業者によ
って回収され、二次及び三次処理され無害化されている
が、回収費の高騰により廃液引き取り価格は年々高くな
るばかりでなく、ミニラボ等では回収効率は悪いため、
なかなか回収に来てもらうことができず、廃液が店に充
満する等の問題を生じている。However, due to stricter pollution regulations in recent years, it is possible to dispose of washing water and cooling water into sewers or rivers, but other photographic processing solutions [e.g. developer, fixer, color developer, bleach-fixer] (or bleaching solution, fixing solution), stabilizer solution, etc.] has become virtually impossible to dispose of. For this reason, each photo processing company pays a collection fee to a specialized waste liquid processing company to collect the waste liquid, or installs pollution treatment equipment. However, the method of outsourcing to a waste liquid treatment company requires a considerable amount of space to store the waste liquid, and is also extremely expensive. Furthermore, pollution treatment equipment has drawbacks such as extremely large initial investment (initial cost) and the need for a fairly large space for maintenance. Therefore, waste liquid is generally collected by a waste liquid collection company and rendered harmless through secondary and tertiary processing, but not only is the price of waste liquid increasing year by year due to rising collection costs, but collection efficiency is low in minilabs, etc.
It is difficult to get people to come and collect the liquid, causing problems such as waste liquid filling the store.
これらの問題を解決するために写真処理廃液の処理をミ
ニラボ等でも容易に行なえることを目的として、写真処
理廃液を加熱して水分を蒸発乾固ないし固化することが
研究されており、例えば、実開昭60−70841号等
に示されている。In order to solve these problems, research has been conducted to heat the photographic processing waste liquid to evaporate the water to dryness or solidify it, with the aim of making it easier to process the photographic processing waste liquid even in minilabs. This is shown in Utility Model Application Publication No. 60-70841.
[発明が解決しようとする課題]
ところで、このように写真処理廃液を蒸発処理した場合
、亜硫酸ガス、硫化水素、アンモニアガス等の有害ない
し極めて悪臭性のガスが発生する。これは写真処理廃液
に含有される定着液や漂白定着液としてよく用いられる
特有のイオウ系化合物、例えばチオ硫酸塩や亜硫酸塩の
分解によるものである。[Problems to be Solved by the Invention] By the way, when photographic processing waste liquid is evaporated in this manner, harmful or extremely malodorous gases such as sulfur dioxide gas, hydrogen sulfide, and ammonia gas are generated. This is due to the decomposition of specific sulfur compounds, such as thiosulfate and sulfite, which are often used in fixers and bleach-fixers contained in photographic processing waste solutions.
このため、臭気成分を除去すべく種々の研究、実験を行
なったところ、加熱手段の加熱で写真処理廃液を蒸発濃
縮し、所定量蓄積すると取り出して廃棄しているが、こ
の蓄積された濃縮物を加熱し続けると、濃縮物が過熱分
解して、硫化水素、アンモニアガス等が発生する一原因
となっていることが判明した。For this reason, various studies and experiments have been conducted to remove odor components, and it has been found that the photographic processing waste liquid is evaporated and concentrated by heating with a heating means, and when a predetermined amount has accumulated, it is taken out and disposed of. It has been found that continued heating causes the concentrate to overheat and decompose, causing hydrogen sulfide, ammonia gas, etc. to be generated.
従って、濃縮物が過熱分解して、硫化水素、アンモニア
ガス等が発生する前に、濃縮物を取り出す必要があるが
、写真処理廃液が蒸発濃縮して生じる濃縮物を、圧力セ
ンサや光センサで等で検知することが困難であり、その
量を正確に検知する手段がない。Therefore, it is necessary to remove the concentrate before it overheats and decomposes and generates hydrogen sulfide, ammonia gas, etc. However, the concentrate produced by evaporation of photographic processing waste can be collected using a pressure sensor or optical sensor. It is difficult to detect such substances, and there is no means to accurately detect the amount.
このため、一定量の写真処理廃液を一定時間処理した後
に、濃縮物を取り出すことが考えられるが、この場合写
真処理廃液の濃度等によって、濃縮物の発生量が異なる
ことがある。例えば、濃縮物が多い場合には、加熱手段
で直接加熱されて硫酸水素、アンモニアガス等が発生し
たり、濃縮物が満杯になると、装置の循環系等に自認ま
りを起し、運転に支障をきたすおそれがある。For this reason, it is conceivable to take out the concentrate after processing a certain amount of photographic processing waste liquid for a certain period of time, but in this case, the amount of concentrate generated may vary depending on the concentration of the photographic processing waste liquid, etc. For example, if there is a large amount of concentrate, it will be directly heated by the heating means and hydrogen sulfate, ammonia gas, etc. will be generated, and if the concentrate is full, it will cause problems with the circulation system of the equipment and interfere with operation. There is a risk of causing
また、濃縮物の発生が少ない場合でも、所定時間処理し
て運転を停止するため、手数がかかり、処理効率が悪い
等の問題がある。Further, even when the amount of concentrate generated is small, the operation is stopped after processing for a predetermined period of time, which is time consuming and has problems such as poor processing efficiency.
この発明はかかる点に鑑みなされたもので、濃縮物の蓄
積度を検出して、濃縮物の取り出しを行ない効率的な処
理を可能とすると共に、濃縮物の過熱分解を防止し、悪
臭の発生を軽減することができる写真処理廃液の処理装
置を提供することを目的としている。This invention was made in view of the above points, and enables efficient processing by detecting the degree of accumulation of concentrate and taking out the concentrate, as well as preventing the concentrate from being decomposed by overheating, thereby preventing the generation of bad odors. It is an object of the present invention to provide a processing device for photographic processing waste liquid that can reduce the amount of waste.
[課題を解決するための手段]
前記課題を解決するために、この発明は写真処理廃液を
、加熱手段で加熱して蒸発濃縮せしめる写真処理廃液の
処理装置において、前記加熱手段と別な部位に、前記写
真処理廃液の蒸発濃縮により、濃縮液から発生する濃縮
物を蓄積させる除去可能な容器を備え、かつこの濃縮物
の蓄積度を検出する手段を有することを特徴としている
。[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a processing apparatus for photographic processing waste liquid that heats photographic processing waste liquid with a heating means to evaporate and concentrate the photographic processing waste liquid. The present invention is characterized in that it includes a removable container for accumulating a concentrate generated from the concentrate generated by evaporation concentration of the photographic processing waste liquid, and a means for detecting the degree of accumulation of the concentrate.
また、この濃縮物の蓄積度を検出する手段からの信号に
基づいて、加熱手段を制御することができる。Furthermore, the heating means can be controlled based on a signal from the means for detecting the degree of accumulation of the concentrate.
この発明の加熱手段はニクロム線であっても良いし、カ
ートリッジヒータ、石英ヒータ、テフロンヒータ、棒ヒ
ータやパネルヒータのように加工成型されたヒータまた
はマイクロウェーブによる加熱であっても良い。また、
写真処理廃液に導電材料を直接接触させ、この導電材料
によって写真処理廃液中に電流を流すと共に、加熱する
ようにしてもよい。The heating means of the present invention may be a nichrome wire, or may be heated by a molded heater such as a cartridge heater, quartz heater, Teflon heater, rod heater, or panel heater, or microwave heating. Also,
A conductive material may be brought into direct contact with the photographic processing waste liquid, and the conductive material may cause an electric current to flow through the photographic processing waste liquid and heat the photographic processing waste liquid.
さらに、ヒートポンプを使用することもでき、このヒー
トポンプは低温の熱源から熱エネルギーを取り出し、そ
れをより高温な利用しやすい熱エネルギーに変換する装
置であり、ヒートポンプを用いて写真処理廃液を加熱し
て、この加熱によって生じる蒸気を冷却して蒸留水を得
、このとき熱交換で得られる熱エネルギーで加熱でき、
効率的な処理ができる。Additionally, you can use a heat pump, which is a device that extracts thermal energy from a low-temperature heat source and converts it into higher-temperature, more usable thermal energy. , the steam generated by this heating is cooled to obtain distilled water, which can be heated using the thermal energy obtained through heat exchange.
Efficient processing is possible.
この加熱手段の熱密度は、好ましく1〜20W/ c
m 2であり、さらに好ましくは5 W / c m
2に設定される。The heat density of this heating means is preferably 1 to 20 W/c
m2, more preferably 5 W/cm
Set to 2.
装置を運転する場合の濃縮液の温度は100℃以下であ
ることが好ましく、写真処理廃液を常圧下で蒸発濃縮す
る場合と、減圧下で蒸発濃縮する場合では異なった温度
が好ましい。この温度にすることで濃縮された濃縮物の
過熱分解を防止でき、硫化水素、アンモニアガス等の臭
気の発生を大幅に抑制することができる。The temperature of the concentrated liquid when operating the apparatus is preferably 100° C. or lower, and different temperatures are preferable when the photographic processing waste liquid is evaporated and concentrated under normal pressure and when it is evaporated and concentrated under reduced pressure. By setting the temperature to this temperature, overheating decomposition of the concentrated concentrate can be prevented, and generation of odors such as hydrogen sulfide and ammonia gas can be significantly suppressed.
この温度は、常圧下で写真処理廃液が蒸発濃縮される場
合には、50〜95℃が好ましく、さらに好ましくは6
0〜80℃である。This temperature is preferably 50 to 95°C, more preferably 6°C when the photographic processing waste liquid is evaporated and concentrated under normal pressure.
The temperature is 0 to 80°C.
また、減圧下で写真処理廃液が蒸発濃縮される場合には
、減圧レベルにより温度をコントロールでき、30〜8
0℃が好ましく、さらに好ましくは40〜70℃である
。In addition, when photographic processing waste liquid is evaporated and concentrated under reduced pressure, the temperature can be controlled by the reduced pressure level, and the
The temperature is preferably 0°C, more preferably 40 to 70°C.
また減圧手段で減圧して加熱すると、加熱エネルギーが
低くて済むばかりでなく、常圧の蒸発方式に比較して蒸
発濃縮物中に発生するタールが少なく、蒸発釜の壁への
付着物も低減することができる。In addition, heating under reduced pressure using a pressure reducing means not only requires less heating energy, but also generates less tar in the evaporated concentrate compared to normal pressure evaporation methods, and reduces deposits on the walls of the evaporator. can do.
この減圧は好ましくは610mmHg以下にすることで
あり、さらに好ましくは520mmHg以下にすること
であり、特に好ましくは230mmHg以下にすること
である。また、減圧の下限は特にないが、減圧状態を作
るときの装置のコストよりlmmHg以上が好ましく、
10mmHg以上であることが簡易な装置で済み好まし
い。This reduced pressure is preferably 610 mmHg or less, more preferably 520 mmHg or less, particularly preferably 230 mmHg or less. In addition, there is no particular lower limit to the reduced pressure, but it is preferably 1 mmHg or more in view of the cost of the equipment used to create the reduced pressure state.
It is preferable that the pressure is 10 mmHg or more because a simple device can be used.
さらに、減圧手段は真空ポンプ、エジェクター等が使用
される。エジェクターを使用する場合にはエジェクター
中に送り込まれる水は、水道の蛇口から直接導いても良
いが、為水をポンプによって循環させることが配管が省
略でき好ましい。さらに、好ましい実施態様としては凝
結水をポンプによって循環させ、エジェクター中に送り
込む方式がある。Furthermore, a vacuum pump, an ejector, etc. are used as the pressure reducing means. When an ejector is used, the water sent into the ejector may be directly led from a tap, but it is preferable to circulate the water with a pump because piping can be omitted. Furthermore, as a preferred embodiment, there is a method in which the condensed water is circulated by a pump and sent into the ejector.
また、減圧手段と蒸発釜とを直結させることにより、直
接蒸発釜中を減圧させてもよいが、蒸発によって生じる
蒸気を導くための蒸気排出管に設けられることが好まし
い。さらに、蒸発によって生じる蒸気を蒸気排出管によ
って凝結させる熱交換手段に導き、凝結によって生じる
凝結水を凝結水排出管によって凝結水貯槽に導くような
構成とし、減圧手段を凝結水排出管ないしは凝結水貯槽
に設けることによって減圧させても良い。さらに1つの
好ましい実施態様として、凝結水をポンプによって循環
させ、エジェクター中に送り込む方式の場合、蒸気排出
管とエジェクターを直結し、凝結水中に蒸気を導くこと
により蒸気を冷却する方式が挙げられる。Although the pressure reduction means and the evaporator may be directly connected to directly reduce the pressure in the evaporator, it is preferable that the pressure reducing means be provided in a steam exhaust pipe for guiding the steam generated by evaporation. Further, the steam produced by evaporation is guided to a heat exchange means for condensing through a steam discharge pipe, and the condensed water produced by condensation is guided to a condensed water storage tank by a condensed water discharge pipe, and the pressure reduction means is connected to a condensed water discharge pipe or a condensed water storage tank. The pressure may be reduced by providing it in a storage tank. Furthermore, in the case of a method in which the condensed water is circulated by a pump and sent into the ejector, one preferred embodiment is a method in which the steam discharge pipe and the ejector are directly connected, and the steam is cooled by introducing the steam into the condensed water.
また、減圧手段として、蒸気以外の真空ポンプ等として
は86787科学機器総覧(AI集集光発行所東京科学
機器協会)第537頁〜第610頁記載のものを使用す
ることもできる。Further, as the pressure reducing means, vacuum pumps other than steam, etc., may be those described on pages 537 to 610 of 86787 Scientific Instruments Directory (AI Shuko Publishing, Tokyo Scientific Instruments Association).
また、運転中の蒸発濃縮液の温度をioo℃以下とする
ため加熱手段をコントロールすることもできるが、この
発明の写真処理廃液の処理装置においては、循環系に空
気を混入させることによる方法が好ましく、この空気量
は加熱量に対して0.1〜100J2/kcaitが好
ましい。この空気の混入によって、写真処理廃液の突沸
状態をなくし蒸発温度を低下させて、硫化水素、アンモ
ニアガス等の臭気の発生を抑制する。In addition, the heating means can be controlled to keep the temperature of the evaporative concentrate to below io0°C during operation, but in the photographic processing waste liquid processing apparatus of the present invention, a method of mixing air into the circulation system is possible. Preferably, the amount of air is 0.1 to 100 J2/kcait relative to the amount of heating. By mixing this air, the bumping state of the photographic processing waste liquid is eliminated and the evaporation temperature is lowered, thereby suppressing the generation of odors such as hydrogen sulfide and ammonia gas.
この発明においては、加熱手段と別な部位に、写真処理
廃液の蒸発濃縮により、濃縮液から発生する濃縮物を蓄
積させる除去可能な容器が備えられており、この容器に
濃縮液が収納して濃縮液中に生じる濃縮物が沈殿して蓄
積されるようにしてもよい。また、この容器は装置から
着脱可能である。In this invention, a removable container is provided in a part separate from the heating means to accumulate the concentrate generated from the concentrated liquid by evaporation concentration of the photographic processing waste liquid, and the concentrated liquid is stored in this container. The concentrate generated in the concentrate may be allowed to settle and accumulate. Moreover, this container is removable from the device.
さらに、濃縮物の取り出しは蒸発釜内にバッグを設け、
濃縮物をバッグと共に取り出して廃棄したり、蒸発室下
部にバッグやネジ込み式やワンタッチ装着のポリエチレ
ン瓶を配置し、濃縮物を取り出し、廃棄することができ
る。Additionally, a bag is installed inside the evaporator to take out the concentrate.
The concentrate can be taken out and disposed of along with the bag, or a bag or a screw-on or one-touch polyethylene bottle can be placed at the bottom of the evaporation chamber, and the concentrate can be taken out and disposed of.
この濃縮物の蓄積度を検出する手段としては、濃縮液ま
たは濃縮物の温度変化を検出して蓄積度を検出すること
ができる。例えば、濃縮液が設定温度に上昇したことを
検出して濃縮物の蓄積度を検出し、また濃縮物及びその
周囲の温度が設定温度以下に低下したことを検出して濃
縮物の蓄積度を検出することができる。この温度変化を
検出す1す
る手段として、サーミスタ、熱電対、半導体温度センサ
等の温度センサがあり、この温度センサは写真処理廃液
が蒸発濃縮される場所であれば特に限定されず、写真処
理廃液の循環系であってもよい。As means for detecting the degree of accumulation of the concentrate, it is possible to detect the degree of accumulation by detecting the temperature change of the concentrate or the concentrate. For example, the degree of accumulation of concentrate can be detected by detecting that the temperature of the concentrate has risen to a set temperature, and the degree of accumulation of concentrate can be determined by detecting that the temperature of the concentrate and its surroundings has fallen below the set temperature. can be detected. As means for detecting this temperature change, there are temperature sensors such as thermistors, thermocouples, and semiconductor temperature sensors.This temperature sensor is not particularly limited as long as it is a place where photographic processing waste liquid is evaporated and concentrated; It may be the circulatory system.
また、濃縮物の蓄積度を検出する手段としては、さらに
重量検出手段で濃縮物が蓄積するバッグ等の重量を検出
して濃縮物の蓄積度を得るもの、また流量検出手段で例
えば循環系を写真処理廃液が循環する流量を検出して蓄
積度を得るもの、さらに写真処理廃液の蒸発濃縮が行な
われても、液面検出手段で一定時間以上液面を検出した
ままであることにより蓄積度を得るもの、また赤外線に
より濃縮物を検出して蓄積度を得るもの等がある。Further, as a means for detecting the degree of accumulation of concentrate, a weight detection means may be used to detect the weight of a bag or the like in which concentrate is accumulated to obtain the degree of accumulation of concentrate, and a flow rate detection means may be used to detect the degree of accumulation of concentrate, for example. The degree of accumulation is obtained by detecting the flow rate at which the photographic processing waste liquid circulates, and even if the photographic processing waste liquid is evaporated and concentrated, the degree of accumulation is determined by detecting the liquid level for a certain period of time or more with the liquid level detection means. There are methods that obtain the degree of accumulation by detecting the concentrate using infrared rays.
この濃縮物の蓄積度を検出する手段からの信号に基づい
て、処理装置の運転が制御され、この場合加熱手段を制
御することが、濃縮物の過熱を防止でき好ましい。The operation of the processing device is controlled based on the signal from the means for detecting the degree of accumulation of the concentrate, and in this case, it is preferable to control the heating means to prevent overheating of the concentrate.
この発明による処理を行なうことができる写真処理廃液
の代表例については、この出願人が先に出願した特願昭
82−194615号明細書等に記載されるものが用い
られ、特に、この発明の処理装置においては、チオ硫酸
塩、亜硫酸塩、アンモニウム塩を多量に含有する写真処
理廃液の場合に有効であり、特に有機酸第2鉄錯塩及び
チオ硫酸塩を含有する場合極めて有効である。Typical examples of photographic processing waste liquids that can be processed according to the present invention include those described in Japanese Patent Application No. 1982-194615 previously filed by this applicant. In processing equipment, it is effective for photographic processing waste liquids containing large amounts of thiosulfates, sulfites, and ammonium salts, and is particularly effective when containing organic acid ferric complex salts and thiosulfates.
この発明の好ましい適用例としては、自動現像機による
写真感光材料の現像処理に伴ない発生する写真処理廃液
を自動現像機内もしくはその近傍にて処理を行なうのに
適している。A preferred application of the present invention is to treat photographic processing waste liquid generated during the development of photographic light-sensitive materials using an automatic processor in or near the automatic processor.
[作用コ
この発明では、除去可能な容器に、写真処理廃液の蒸発
濃縮によ)て生じる濃縮物を蓄積させ、この容器に蓄積
された濃縮物の蓄積度を検出するため、除去可能な容器
を交換して濃縮物を廃棄することができる。[Operation] In this invention, a removable container is used to accumulate a concentrate produced by evaporative concentration of photographic processing waste liquid in a removable container, and to detect the degree of accumulation of the concentrate accumulated in this container. can be replaced and the concentrate discarded.
また、この濃縮物の蓄積度が所定値になると、加熱手段
を制御して写真処理廃液の蒸発濃縮を停止することがで
き、濃縮物の過熱分解を防止し、悪臭の発生を軽減する
ことができる。In addition, when the degree of accumulation of this concentrate reaches a predetermined value, the heating means can be controlled to stop the evaporative concentration of the photographic processing waste liquid, preventing overheated decomposition of the concentrate and reducing the occurrence of bad odors. can.
[実施例コ
第1図はこの発明の写真処理廃液の処理装置を示す概略
構成図である。[Example 1] FIG. 1 is a schematic diagram showing a processing apparatus for photographic processing waste liquid according to the present invention.
図において符号1は写真処理廃液が貯溜する蒸発釜、2
は濃縮物を取り出す除去可能な排出容器で、両者は連結
バイブ3で連結されている。蒸発釜1の下部は配管4を
介して排出容器2の上部に配置した分離手段5と連結さ
れ、これらは写真処理廃液の循環系を構成している。In the figure, reference numeral 1 is an evaporation pot in which photographic processing waste liquid is stored, and 2
is a removable discharge container for taking out the concentrate, and both are connected by a connecting vibrator 3. The lower part of the evaporator 1 is connected via a pipe 4 to a separation means 5 disposed above the discharge container 2, and these constitute a circulation system for photographic processing waste liquid.
蒸発釜1には液面検出センサ6が設けられており、この
液面検出センサ6で循環系の写真処理廃液の液量を監視
している。The evaporation pot 1 is provided with a liquid level detection sensor 6, and the liquid level detection sensor 6 monitors the amount of photographic processing waste liquid in the circulation system.
排出容器2は濃縮物を取り出すものであり、処理中には
廃液タンク7から廃液供給ポンプ8の作動で写真処理廃
液が配管9を介して配管4に供給される。そして、分離
手段5を介して排出容器2に導かれ、オーバーフローし
た写真処理廃液が蒸発釜1に貯留され、排出容器2内に
は濃縮物が蓄積される。この排出容器2に濃縮物が蓄積
されると、写真処理廃液がオーバーフローして蒸発釜1
に供給され、写真処理廃液は自動的に循環系を循環し、
濃縮物が排出容器2に蓄積されていき、濃縮物が満杯に
なると、排出容器2を取り外して新規な排出容器と交換
することができるようになっている。The discharge container 2 is for taking out the concentrate, and during processing, photographic processing waste liquid is supplied from the waste liquid tank 7 to the pipe 4 via the pipe 9 by the operation of the waste liquid supply pump 8 . Then, the overflowing photographic processing waste liquid is led to the discharge container 2 via the separation means 5 and stored in the evaporator 1, and the concentrate is accumulated in the discharge container 2. When the concentrate accumulates in the discharge container 2, the photographic processing waste overflows into the evaporator 1.
The photographic processing waste liquid is automatically circulated through the circulation system.
Concentrate accumulates in the drain container 2, and when the concentrate is full, the drain container 2 can be removed and replaced with a new drain container.
配管4の外周にはヒータ10が設けられ、このヒータ1
0によって配管4を循環する写真処理廃液を加熱するよ
うになっており、この加熱された写真処理廃液は分離手
段5に送られる。ヒータ10は配管4の内部に配置し、
写真処理廃液を直接加熱するようにしてもよい。なお、
ヒータ10を分離手段5より高い位置に配置することも
でき、この場合には循環系に循環ポンプを配置して強制
的に循環させる。また、ヒータ10を循環系に設けるこ
とにより、写真処理廃液の蒸発面積を小さくすることが
でき、しかも濃縮物を過熱することがなくなるため、濃
縮物の過熱分解による臭気ガスを大幅に低下させること
ができ、濃縮が進行しても硫化水素、イオウ系の臭気の
発生が軽減す分離手段5の内部には邪魔板5aが配置さ
れており、供給される加熱された写真処理廃液を蒸気と
濃縮物に分離して、蒸気は蒸気排出管11を介して取り
出され、濃縮物は落下して排出容器2に蓄積される。分
離手段5はガスを含む蒸気と写真処理廃液とを分離する
機能を有するため、この機能を有する程度まで容量を小
さくすることができ、また材質も高度の耐熱性を有しな
いもので形成することができ製作コストの低減が可能に
なっている。A heater 10 is provided on the outer periphery of the pipe 4.
0 heats the photographic processing waste liquid circulating through the pipe 4, and this heated photographic processing waste liquid is sent to the separation means 5. The heater 10 is arranged inside the pipe 4,
The photographic processing waste liquid may be directly heated. In addition,
The heater 10 can also be placed at a higher position than the separation means 5, in which case a circulation pump is placed in the circulation system to force the circulation. Furthermore, by providing the heater 10 in the circulation system, the evaporation area of the photographic processing waste liquid can be reduced, and since the concentrate is not overheated, the odor gas caused by overheated decomposition of the concentrate can be significantly reduced. A baffle plate 5a is arranged inside the separation means 5, which reduces the generation of hydrogen sulfide and sulfur-based odors even as the concentration progresses. Once separated, the vapor is removed via the vapor discharge pipe 11 and the concentrate falls and is accumulated in the discharge container 2. Since the separation means 5 has the function of separating gas-containing steam and photographic processing waste liquid, its capacity can be reduced to the extent that it has this function, and it should also be made of a material that does not have a high degree of heat resistance. This makes it possible to reduce manufacturing costs.
蒸気排出管11を介して取り出される蒸気は、蒸発釜1
から蒸気排出管12から取り出される蒸気と合流して凝
縮器13に送られる。この凝縮器13には水道からの水
が水ポンプ14の駆動で配管15を介して送られ、この
冷却水で蒸気を冷却して凝縮し、これにより得られる蒸
留水が蒸留タンク16に貯留される。この蒸留水は水ポ
ンプ17を介して排出され、蒸留タンク16内の臭気を
含む空気はエアポンプ18の作動で配管19を介して写
真処理廃液と混同して、配管4に供給されて循環系に戻
される。The steam taken out via the steam exhaust pipe 11 is transferred to the evaporator pot 1.
It joins with the steam taken out from the steam exhaust pipe 12 and is sent to the condenser 13. Water from the tap is sent to this condenser 13 via a pipe 15 driven by a water pump 14, and the steam is cooled and condensed with this cooling water, and the resulting distilled water is stored in a distillation tank 16. Ru. This distilled water is discharged through the water pump 17, and the odor-laden air in the distillation tank 16 is mixed with photographic processing waste liquid through the piping 19 by the operation of the air pump 18, and is supplied to the piping 4 and enters the circulation system. be returned.
この混入する空気量は加熱量に対して0.1〜100Q
/kcaILが好ましく、この空気の混入によって、写
真処理廃液の蒸発温度を低下させて、硫化水素、アンモ
ニアガス等の臭気の発生を抑制する。廃液タンク7には
液面検出センサ20が備えられ、廃液の残量を検知して
いる。The amount of air mixed in is 0.1 to 100Q relative to the amount of heating.
/kcaIL is preferable, and the mixture of air lowers the evaporation temperature of the photographic processing waste liquid and suppresses the generation of odors such as hydrogen sulfide and ammonia gas. The waste liquid tank 7 is equipped with a liquid level detection sensor 20 to detect the remaining amount of waste liquid.
蒸発釜1の液面検出センサ6、廃液タンク7の液面検出
センサ20、また配管4に設けられた温度センサ21か
らの検出情報は制御部22に入力され、これらの情報に
よって水ポンプ14,17、エアポンプ18、廃液供給
ポンプ8及びヒータ10等を制御するようになっている
。Detection information from the liquid level detection sensor 6 of the evaporation pot 1, the liquid level detection sensor 20 of the waste liquid tank 7, and the temperature sensor 21 provided in the piping 4 is input to the control unit 22, and based on this information, the water pump 14, 17, an air pump 18, a waste liquid supply pump 8, a heater 10, etc.
この温度センサ21は配管4にたまる濃縮物の温度を検
出して、その温度情報を制御部22に入力するものであ
り、濃縮物の温度が設定温度に上昇すると、制御部22
を介してヒータ10の作動が停止されるようになってい
る。This temperature sensor 21 detects the temperature of the concentrate accumulated in the pipe 4 and inputs the temperature information to the control section 22. When the temperature of the concentrate rises to the set temperature, the control section 22
The operation of the heater 10 is stopped via the.
温度センサ21はヒータ10の上方位置に設けても、下
方位置に設けてもよく、さらに両ヒータ100間に設け
てもよい。The temperature sensor 21 may be provided above or below the heater 10, or may be provided between both heaters 100.
この処理装置の運転は、始動スイッチが操作されると、
廃液供給ポンプ8が駆動して、写真処理廃液を配管9を
介して配管バイブ4に供給し、排出容器2及び蒸発釜1
等の循環系に所定量貯溜させる。The operation of this processing device starts when the start switch is operated.
The waste liquid supply pump 8 is driven to supply the photographic processing waste liquid to the piping vibe 4 through the piping 9, and then to the discharge container 2 and the evaporation pot 1.
A predetermined amount is stored in the circulatory system.
そして、ヒータ10を駆動して写真処理廃液の蒸発して
濃縮する処理を行ない、濃縮物が排出容器2に蓄積され
、排出容器2に濃縮物が満杯になると、濃縮物がオーバ
ーフローして蒸発釜1から配管4に入るようになる。こ
の濃縮物の温度は温度センサ21が検知しており、ヒー
タ10の加熱で温度が上昇して設定温度になると、制御
部22を介してヒータ10の作動が停止する。Then, the heater 10 is driven to evaporate and concentrate the photographic processing waste liquid, and the concentrate is accumulated in the discharge container 2. When the discharge container 2 is full, the concentrate overflows into the evaporation pot. 1 will enter pipe 4. The temperature of this concentrate is detected by a temperature sensor 21, and when the temperature rises due to heating by the heater 10 and reaches the set temperature, the operation of the heater 10 is stopped via the control unit 22.
このとき、廃液供給ポンプ8とエアポンプ18は所定時
間駆動して停止させると、配管4内の濃縮物を溶解する
ことができる。At this time, if the waste liquid supply pump 8 and the air pump 18 are driven for a predetermined period of time and then stopped, the concentrate in the pipe 4 can be dissolved.
これによって、排出客器2に濃縮物が満杯になったこと
を確実に知ることができ、排出容器2を取り外して新た
な排出容器と交換することができ、作業効率が向上する
。また、この蓄積された濃縮物が加熱され続けることが
なくなり、濃縮物が過熱分解して、硫化水素、アンモニ
アガス等が発生することを防止できる。Thereby, it can be reliably known that the discharge container 2 is full of concentrate, and the discharge container 2 can be removed and replaced with a new discharge container, improving work efficiency. Further, the accumulated concentrate is not heated continuously, and the concentrate is prevented from being overheated and decomposed to generate hydrogen sulfide, ammonia gas, etc.
第2図は他の実施例を示し、蒸発釜1の下部と排出容器
2の上部とを配管4で連結し、蒸発釜1の上部に分離手
段5を一体に備えたものである。FIG. 2 shows another embodiment, in which the lower part of the evaporator 1 and the upper part of the discharge container 2 are connected by a pipe 4, and the upper part of the evaporator 1 is integrally provided with a separating means 5.
この分離手段5で分離された濃縮物は配管4から排出容
器2に導かれ、排出容器2に濃縮物が蓄積すると、写真
処理廃液がオーバーフローして蒸発釜1に導入され、こ
の蒸発釜1で濃縮処理される。The concentrate separated by this separation means 5 is led to a discharge container 2 through a pipe 4, and when the concentrate accumulates in the discharge container 2, the photographic processing waste overflows and is introduced into the evaporator 1. It is concentrated.
第3図はさらに他の実施例を示し、蒸発釜1の内部に排
出容器23が配置され、この排出容器23はスラッジフ
ィルタで構成されている。この排出容器23は取付部材
24を介して着脱可能に支持されている。循環系の配管
4から排出される加熱された写真処理廃液は排出容器2
3に供給されることによって、ガスを含む蒸気と濃縮さ
れた写真処理廃液に分離され、この写真処理廃液は排出
容器23でろ過されて水分が除去された濃縮物を取り出
すことができる。FIG. 3 shows yet another embodiment, in which a discharge container 23 is disposed inside the evaporation pot 1, and this discharge container 23 is constituted by a sludge filter. This discharge container 23 is removably supported via a mounting member 24. The heated photographic processing waste liquid discharged from the circulation system piping 4 is stored in a discharge container 2.
3, the photoprocessing waste liquid is separated into a gas-containing vapor and a concentrated photographic processing waste liquid, and this photographic processing waste liquid is filtered through a discharge container 23 to take out a concentrate from which water has been removed.
第4図は加熱手段にヒートポンプ25を用いたものであ
る。ヒートポンプ25の蒸発部25aで蒸発釜1に貯留
された写真処理廃液を加熱し、凝縮部25bで蒸気を冷
却して蒸留水を得るようなっている。このヒートポンプ
25は冷却で熱交換して得られた熱エネルギーで写真処
理廃液を加熱するから効率的であり、この蒸発釜1内は
減圧ポンプ26の駆動で減圧され、所定の減圧下で加熱
して蒸発濃縮が行なわれる。FIG. 4 shows an example in which a heat pump 25 is used as the heating means. The evaporating section 25a of the heat pump 25 heats the photographic processing waste liquid stored in the evaporating pot 1, and the condensing section 25b cools the steam to obtain distilled water. This heat pump 25 is efficient because it heats the photographic processing waste liquid with the thermal energy obtained by heat exchange through cooling, and the inside of this evaporation pot 1 is depressurized by the drive of the decompression pump 26, and is heated under a predetermined reduced pressure. Evaporative concentration is performed.
蒸発釜1内で写真処理廃液が加熱され、これによって生
じる濃縮物は、開放されたバルブ29を介して排出容器
2に沈殿する。そして、所定の位置まで沈殿すると、温
度センサ21が排出容器2に蓄積する濃縮物の温度を検
知するようになっており、所定の設定温度になると、運
転を停止する。この場合、蒸発釜1内は減圧状態である
から設定温度は常圧の場合より低温に設定されてぃる。The photographic processing waste liquid is heated in the evaporator 1 and the resulting concentrate is deposited into the discharge container 2 via the opened valve 29. When the concentrate settles to a predetermined position, a temperature sensor 21 detects the temperature of the concentrate accumulated in the discharge container 2, and when the temperature reaches a predetermined set temperature, the operation is stopped. In this case, since the inside of the evaporator 1 is in a reduced pressure state, the set temperature is set lower than that in the case of normal pressure.
そして、排出容器2内の濃縮物の取り出しは、下方に設
けられたバルブ29を例えば手動で閉じて、排出容器2
を取り外して交換することにより行なう。Then, the concentrate in the discharge container 2 can be taken out by manually closing the valve 29 provided below, and then removing the concentrate from the discharge container 2.
This is done by removing and replacing.
第5図乃至第9図は濃縮物の蓄積度を検出する手段の他
の実施例を示している。5 to 9 show other embodiments of the means for detecting the degree of accumulation of concentrate.
第5図は分離手段5の下部に形成された取出部5aに、
排出容器2の取付部2aが挿通され、この取付部2aが
パツキン3oを介してネジ込みコネクタ31で締付固定
され、このネジ込みコネクタ31で着脱可能になってい
る。この排出容器2の側壁の底部や上部に温度センサ2
1が設けられており、この温度センサ21で濃縮液また
は濃縮物の温度変化を検出して蓄積度を検出することが
できるようになりている。FIG. 5 shows that a take-out portion 5a formed at the bottom of the separating means
The mounting part 2a of the discharge container 2 is inserted through the mounting part 2a, and the mounting part 2a is tightened and fixed with a screw connector 31 via a gasket 3o, so that it can be attached or detached using the screw connector 31. A temperature sensor 2 is installed at the bottom or top of the side wall of this discharge container 2.
1 is provided, and this temperature sensor 21 can detect the temperature change of the concentrate or the concentrate to detect the degree of accumulation.
従って、装置が始動されると、写真処理廃液が分離手段
5に供給され、排出容器2及び蒸発釜1に供給され、蒸
発釜1の液面検出センサ6が作動するまで供給される。Therefore, when the apparatus is started, the photographic processing waste liquid is supplied to the separation means 5, and then to the discharge container 2 and the evaporator 1 until the liquid level detection sensor 6 of the evaporator 1 is activated.
そして、ヒータ1oを駆動して写真処理廃液の蒸発濃縮
が行なわれ、濃縮物は排出容器2の底部に蓄積され、こ
の濃縮物が排出容器2の上部まで蓄積されると、温度セ
ンサ21が濃縮物及びその周囲の温度が設定温度以下に
低下したことを検出し、これにより濃縮物の蓄積度を検
出することができる。Then, the heater 1o is driven to evaporate and concentrate the photographic processing waste liquid, and the concentrate is accumulated at the bottom of the discharge container 2. When the concentrate is accumulated to the top of the discharge container 2, the temperature sensor 21 detects the concentration. It is possible to detect that the temperature of the object and its surroundings has fallen below the set temperature, thereby detecting the degree of accumulation of the concentrate.
この温度センサ21は一点鎖線で示すように、分離手段
5の底部に設けることもできる。This temperature sensor 21 can also be provided at the bottom of the separation means 5, as shown by the dashed line.
第6図は重量検出手段32で濃縮物が蓄積する排出容器
2の重量を検出して、濃縮物の蓄積度を得るものである
。この排出容器2はコネクタ33で、分離手段5の取出
部5aに着脱可能に取付けられている。In FIG. 6, the weight of the discharge container 2 in which the concentrate is accumulated is detected by the weight detecting means 32 to obtain the degree of accumulation of the concentrate. This discharge container 2 is detachably attached to the take-out portion 5a of the separation means 5 by a connector 33.
この実施例では排出容器2内に濃縮物が蓄積すると、排
出容器2及び分離手段5が下がり、この重量を重量検出
手段32で検出して、濃縮物がないときとの変化量から
濃縮物の退席度を検出するようになっている。In this embodiment, when concentrate accumulates in the discharge container 2, the discharge container 2 and the separation means 5 are lowered, the weight is detected by the weight detection means 32, and the amount of concentrate is determined from the amount of change from when there is no concentrate. It is designed to detect the degree of absence.
従って、この連結バイブ3、配管4及び蒸気排出管11
はいずれもフレキシブルバイブで形成され、分離手段5
及び排出容器2の移動を許容するようになっている。Therefore, this connecting vibe 3, piping 4 and steam exhaust pipe 11
are both formed of flexible vibrators, and the separation means 5
and movement of the discharge container 2 is permitted.
また、排出容器2と分離手段5とを蛇腹の配管で接続し
て、排出容器2の重量を検出して濃縮物の蓄積度を検出
することも可能である。Further, it is also possible to connect the discharge container 2 and the separation means 5 with a bellows-shaped pipe, and detect the weight of the discharge container 2 to detect the degree of accumulation of concentrate.
第7図は赤外線センサ34を分離手段5の取出部5aに
配置し、赤外線が濃縮物に含まれる銀によって遮断され
ることで、濃縮物の蓄積度を得ることができるようにな
っている。In FIG. 7, an infrared sensor 34 is disposed at the take-out portion 5a of the separation means 5, and the degree of accumulation of the concentrate can be obtained by blocking infrared rays by silver contained in the concentrate.
第8図は液面検出手段35で、一定時間以上液面を検出
したままであることにより蓄積度を得るものである。即
ち、液面検出手段35に設けられた網電極部35aが、
蒸発釜1の内部に処理時の液面と略同位置に配置されて
おり、濃縮物がこの位置まで蓄積すると、この濃縮物に
よって網電極部35aが通電して濃縮物の蓄積度を検出
することができる。FIG. 8 shows a liquid level detection means 35, which obtains the degree of accumulation by detecting the liquid level for a certain period of time or more. That is, the mesh electrode portion 35a provided in the liquid level detection means 35,
It is arranged inside the evaporation pot 1 at approximately the same position as the liquid level during processing, and when the concentrate accumulates to this position, the mesh electrode part 35a is energized by the concentrate to detect the degree of accumulation of the concentrate. be able to.
第9図は流量検出手段36が配管4に配置されており、
この配管4を流れる写真処理廃液の流量を検出し、蓄積
度を得るものである。写真処理廃液の流量が少なくなる
と、配管4まで濃縮物が蓄積されたことになり、この流
量によって蓄積度を得ることができる。In FIG. 9, a flow rate detection means 36 is arranged in the piping 4,
The flow rate of the photographic processing waste liquid flowing through the pipe 4 is detected to obtain the degree of accumulation. When the flow rate of the photographic processing waste liquid decreases, this means that the concentrate has accumulated up to the pipe 4, and the degree of accumulation can be determined by this flow rate.
[発明の効果コ
前記のように、この発明の写真処理廃液の処理装置は、
除去可能な容器に、写真処理廃液の蒸発濃縮によって生
じる濃縮物を蓄積させ、この容器に蓄積された濃縮物の
蓄積度を検出するようにしたから、・簡単に濃縮物の蓄
積を検出することができ、この容器を交換して濃縮物を
廃棄することができる。[Effects of the Invention] As mentioned above, the photographic processing waste liquid processing apparatus of the present invention has the following effects:
Concentrates generated by evaporative concentration of photographic processing waste liquid are accumulated in a removable container, and the degree of accumulation of the concentrates accumulated in this container is detected. Therefore, the accumulation of concentrates can be easily detected. This container can be replaced and the concentrate can be disposed of.
また、この濃縮物の蓄積度が所定値になると、加熱手段
を制御して、写真処理廃液の蒸発濃縮を停止するから、
濃縮物の過熱分解を防止し、悪臭の発生を軽減すること
ができる。Furthermore, when the degree of accumulation of this concentrate reaches a predetermined value, the heating means is controlled to stop the evaporation and concentration of the photographic processing waste liquid.
It is possible to prevent overheated decomposition of concentrates and reduce the occurrence of bad odors.
第1図はこの発明の写真処理廃液の処理装置を示す概略
構成図、第2図乃至第4図は他の実施例を示す概略構成
図、第5図乃至第9図は濃縮物の蓄積度を検出する手段
の他の実施例を示す図である。
図面中符号1は蒸発釜、2.23は排出容器、5は分離
手段、3は連結パイプ、10はヒータ、21は温度セン
サ、25はヒートポンプ、32は重量検出手段、34は
赤外線センサ、35は液面検出手段、36は流量検出手
段である。Fig. 1 is a schematic block diagram showing a processing apparatus for photographic processing waste liquid according to the present invention, Figs. 2 to 4 are schematic block diagrams showing other embodiments, and Figs. 5 to 9 show the degree of accumulation of concentrate. It is a figure which shows another Example of a means to detect. In the drawing, reference numeral 1 is an evaporation pot, 2.23 is a discharge container, 5 is a separation means, 3 is a connecting pipe, 10 is a heater, 21 is a temperature sensor, 25 is a heat pump, 32 is a weight detection means, 34 is an infrared sensor, 35 3 is a liquid level detection means, and 36 is a flow rate detection means.
Claims (1)
める写真処理廃液の処理装置において、前記加熱手段と
別な部位に、前記写真処理廃液の蒸発濃縮により、濃縮
液から発生する濃縮物を蓄積させる除去可能な容器を備
え、かつこの濃縮物の蓄積度を検出する手段を有するこ
とを特徴とする写真処理廃液の処理装置。 2、前記請求項1記載の濃縮物の蓄積度を検出する手段
からの信号に基づいて、前記加熱手段を制御することを
特徴とする写真処理廃液の処理装置。[Scope of Claims] 1. In a processing device for photographic processing waste liquid, which heats the photographic processing waste liquid with a heating means to evaporate and concentrate the photographic processing waste liquid, a concentrated liquid is placed in a part different from the heating means by evaporating and concentrating the photographic processing waste liquid. 1. A processing apparatus for photographic processing waste liquid, comprising: a removable container for accumulating a concentrate generated from the liquid; and means for detecting the degree of accumulation of the concentrate. 2. A photographic processing waste liquid processing apparatus, characterized in that the heating means is controlled based on a signal from the means for detecting the degree of accumulation of the concentrate according to claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30380088A JPH02149391A (en) | 1988-11-30 | 1988-11-30 | Apparatus for treating waste liquid of photographic processing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30380088A JPH02149391A (en) | 1988-11-30 | 1988-11-30 | Apparatus for treating waste liquid of photographic processing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02149391A true JPH02149391A (en) | 1990-06-07 |
Family
ID=17925452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30380088A Pending JPH02149391A (en) | 1988-11-30 | 1988-11-30 | Apparatus for treating waste liquid of photographic processing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02149391A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63141692A (en) * | 1986-12-03 | 1988-06-14 | Konica Corp | Method and device for evaporation and concentration treatment of waste photographic processing liquid |
JPS63151301A (en) * | 1986-12-17 | 1988-06-23 | Konica Corp | Apparatus for evaporation and concentration treatment of waste photographic treatment liquid |
-
1988
- 1988-11-30 JP JP30380088A patent/JPH02149391A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63141692A (en) * | 1986-12-03 | 1988-06-14 | Konica Corp | Method and device for evaporation and concentration treatment of waste photographic processing liquid |
JPS63151301A (en) * | 1986-12-17 | 1988-06-23 | Konica Corp | Apparatus for evaporation and concentration treatment of waste photographic treatment liquid |
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