JPH01115490A - Preheating method and apparatus in treatment of cyanogen-containing waste liquor - Google Patents
Preheating method and apparatus in treatment of cyanogen-containing waste liquorInfo
- Publication number
- JPH01115490A JPH01115490A JP27448887A JP27448887A JPH01115490A JP H01115490 A JPH01115490 A JP H01115490A JP 27448887 A JP27448887 A JP 27448887A JP 27448887 A JP27448887 A JP 27448887A JP H01115490 A JPH01115490 A JP H01115490A
- Authority
- JP
- Japan
- Prior art keywords
- waste liquid
- cyanide
- pressure vessel
- preheating
- preheating tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims description 14
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 title abstract 6
- 239000012530 fluid Substances 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 68
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 55
- 238000000354 decomposition reaction Methods 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 20
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 11
- 238000001816 cooling Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000007872 degassing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000009283 thermal hydrolysis Methods 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
Landscapes
- 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）
本発明は圧力容器内で高温の加熱用蒸気によりシアン廃
液を熱加水分解するシアン廃液処理における予熱方法及
び装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a preheating method and apparatus for cyanide waste liquid treatment in which cyanide waste liquid is thermally hydrolyzed using high-temperature heating steam in a pressure vessel.
（従来技術）
この種のシアン廃液処理方法及び処理装置では、予熱槽
で未処理シアン廃液を例えば１００℃位にまで予熱して
から圧力容器内に供給することにより、圧力容器内での
熱分解作業の能率の向上を図っている。(Prior art) In this type of cyanide waste liquid treatment method and treatment apparatus, the untreated cyanide waste liquid is preheated to, for example, about 100°C in a preheating tank and then supplied into the pressure vessel, thereby causing thermal decomposition within the pressure vessel. We are trying to improve work efficiency.
従来では上記予熱槽での予熱用熱源としては、例えば予
熱専用のヒータ等を使用している。Conventionally, as a heat source for preheating in the preheating tank, for example, a heater exclusively for preheating is used.
（発明の目的）
本発明は、圧力容器内の高温排ガスあるいは高温の処理
済液等の高温排出流体の排熱を予熱に利用することによ
り、省エネルギー化を達成することを目的としている。(Objective of the Invention) An object of the present invention is to achieve energy saving by utilizing the exhaust heat of high-temperature exhaust fluid such as high-temperature exhaust gas or high-temperature treated liquid in a pressure vessel for preheating.
（目的を達成するための技術的手段）
上記目的を達成するために本願第１発明では、予熱槽内
でシアン廃液を予熱後、シアン分解用圧力容器内で、加
熱用蒸気により高圧高温下でシアン廃液を熱加水分解す
るシアン廃液処理方法において、圧力容器内の高温排出
流体を予熱槽内に導き、上記高温排出流体の排熱により
予熱槽の未処理シアン廃液の予熱を行うようにしている
。(Technical means for achieving the object) In order to achieve the above object, in the first invention of the present application, after preheating the cyanide waste liquid in a preheating tank, it is heated under high pressure and high temperature in a pressure vessel for cyanide decomposition using heating steam. In a cyanide waste liquid treatment method for thermally hydrolyzing cyanide waste liquid, high-temperature discharged fluid in a pressure vessel is led into a preheating tank, and untreated cyanide waste liquid in the preheating tank is preheated by exhaust heat of the high-temperature discharged fluid. .
また第２発明では予熱装置として、加熱用蒸気により高
圧高温下でシアン廃液を熱加水分解するシアン分解用圧
力容器と、該圧力容器に供給する未処理シアン廃液を予
熱する予熱槽とを備えたシアン廃液処理装置において、
圧力容器に、高温排出流体としての高温排ガスを導出す
るガス導出管を接続し、該導出管の出口を予熱槽内に開
口している。The second invention also includes, as a preheating device, a pressure vessel for cyanide decomposition that thermally hydrolyzes cyanide waste liquid under high pressure and high temperature using heating steam, and a preheating tank that preheats untreated cyanide waste liquid to be supplied to the pressure vessel. In the cyanide waste liquid treatment equipment,
A gas derivation pipe for deriving high-temperature exhaust gas as a high-temperature exhaust fluid is connected to the pressure vessel, and an outlet of the derivation pipe is opened into the preheating tank.
第３発明では予熱装置として、加熱用蒸気により高圧高
温下でシアン廃液を熱加水分解するシアン分解用圧力容
器と、該圧力容器に供給する未処理廃液を予熱する予熱
槽とを備えたシアン廃液処理装置において、圧力容器に
、高温排出流体としての処理済液を排出する排出管を接
続し、該排出管を、予熱槽内を通過するように配置して
いる。In the third invention, the preheating device includes a cyanide decomposition pressure vessel that thermally hydrolyzes the cyanide waste liquid under high pressure and high temperature using heating steam, and a preheating tank that preheats the untreated waste liquid supplied to the pressure vessel. In the processing apparatus, a discharge pipe for discharging a treated liquid as a high-temperature discharge fluid is connected to the pressure vessel, and the discharge pipe is arranged so as to pass through the preheating tank.
（実施例）
第１図は本願の第１、第２本発明が適用されるシアン廃
液処理装置の配管路図であり、この第１図において、圧
力容器１にはシアン廃液供給部２、加熱用蒸気供給部３
、処理済液出口部４及び排ガス取出部５等が設けられて
いる。シアン廃液供給部２には予熱槽８が接続され、該
予熱槽８には送液ポンプ１０を介してシアン廃液貯槽１
１が接続されている。シアン廃液貯槽１１には例えば銅
メツキに利用した後のシアン廃液が貯溜されている。(Example) Fig. 1 is a piping diagram of a cyanide waste liquid treatment apparatus to which the first and second inventions of the present application are applied. steam supply section 3
, a treated liquid outlet section 4, an exhaust gas extraction section 5, etc. are provided. A preheating tank 8 is connected to the cyanide waste liquid supply section 2, and a cyanide waste liquid storage tank 1 is connected to the preheating tank 8 via a liquid sending pump 10.
1 is connected. The cyanide waste liquid storage tank 11 stores, for example, cyanide waste liquid after being used for copper plating.
加熱用蒸気供給部３には蒸気供給源７が接続され、該加
熱用蒸気供給１ｉＸ７は高温、例えば１３０℃〜２００
℃の加熱用蒸気を蒸気供給部３を介して圧力容器１内の
多数のノズルに供給できるようになっている。処理済液
出口部４には次工程槽、例えば冷却槽１７が接続されて
いる。A steam supply source 7 is connected to the heating steam supply unit 3, and the heating steam supply 1i
℃ heating steam can be supplied to a large number of nozzles in the pressure vessel 1 via the steam supply section 3. A next process tank, for example a cooling tank 17, is connected to the treated liquid outlet section 4.
排ガス取出部５にはガス導出管１６が接続されており、
該導出管１６は予熱槽８内のスチームエゼクタ−１８に
接続されている。スチームエゼクタ−１８は予熱槽８の
下部に配置されると共に概ね予熱槽８の中央部に向かう
ように斜め上方に向いて配置されている。また予熱槽８
の上端部には、配管を介してアンモニアガス吸収槽９が
接続されている。A gas outlet pipe 16 is connected to the exhaust gas outlet 5.
The outlet pipe 16 is connected to a steam ejector 18 in the preheating tank 8. The steam ejector 18 is disposed at the lower part of the preheating tank 8 and is arranged diagonally upward toward the center of the preheating tank 8 . Also, preheating tank 8
An ammonia gas absorption tank 9 is connected to the upper end of the tank via piping.
シアン廃液の処理方法について説明する。シアン廃液貯
槽１１のシアン廃液は所定量がポンプ１０により予熱槽
８に送られ、そこで１００℃位まで加熱され、例えば予
熱槽８と圧力容器１とのレベル差により圧力容器１内に
送られる。A method for treating cyanide waste liquid will be explained. A predetermined amount of the cyanide waste liquid in the cyanide waste liquid storage tank 11 is sent to the preheating tank 8 by the pump 10, where it is heated to about 100° C., and is sent into the pressure vessel 1 due to the level difference between the preheating tank 8 and the pressure vessel 1, for example.
圧力容器１内では加熱用蒸気供給源７からの加熱用蒸気
により１３０℃〜２００℃の間の温度、例えば１７０℃
まで加熱され、その温度で３〜４時間保持される。加熱
保持されている時の圧力容器１内の圧力は７ｋｇ／ｃ−
位である。この圧力容器１内での加熱保持によりシアン
廃液はアンモニアガスと、蟻酸塩並びに金属酸化物等に
熱加水分解される。Inside the pressure vessel 1, heating steam from the heating steam supply source 7 maintains a temperature between 130°C and 200°C, for example 170°C.
and held at that temperature for 3-4 hours. The pressure inside the pressure vessel 1 while being heated is 7 kg/c-
It is the rank. By heating and maintaining the cyanide waste within the pressure vessel 1, the cyanide waste liquid is thermally hydrolyzed into ammonia gas, formate, metal oxide, and the like.
蟻酸塩並びに金属酸化物等を含む処理済液は、処理済液
出口部４から冷却槽１７に送られる。The treated liquid containing formate, metal oxides, etc. is sent from the treated liquid outlet 4 to the cooling tank 17 .
一方熱加水分解によって生じるアンモニアガスは高温の
蒸気と共に排ガスとして排ガス取出部５から導出管１６
に取り出され、予熱Ｉ！８内のエゼクタ−１８から予熱
槽８内の未処理シアン廃液中に、細かい泡状となって直
接噴射される。これにより予熱槽８内の未処理シアン廃
液は例えば１００℃位まで直接予熱され、一方排ガスは
冷却される。噴射された排ガス中のアンモニアガスはア
ンモニアガス吸収槽９に送られたり、蒸気と共に一部が
未処理シアン廃液に溶は込む。排ガスは上記のように冷
却された状態で予熱槽８から取り出されることになるの
で、冷却器等を介することなく直接アンモニアガス吸収
槽９に送り込むことができる。On the other hand, ammonia gas generated by thermal hydrolysis is discharged from the exhaust gas extraction section 5 as exhaust gas together with high-temperature steam through the exhaust pipe 16.
It was taken out and preheated! The cyanide is directly injected into the untreated cyanide waste liquid in the preheating tank 8 from the ejector 18 in the preheating tank 8 in the form of fine bubbles. As a result, the untreated cyanide waste liquid in the preheating tank 8 is directly preheated to, for example, about 100° C., while the exhaust gas is cooled. The ammonia gas in the injected exhaust gas is sent to the ammonia gas absorption tank 9, or a part of it is dissolved into the untreated cyanide waste liquid along with the steam. Since the exhaust gas is taken out from the preheating tank 8 in a cooled state as described above, it can be sent directly to the ammonia gas absorption tank 9 without using a cooler or the like.
なお圧力容器１内の高温の排ガスを予熱槽８内に取り出
す時期としては、圧力容器１内で１００℃から１７０℃
迄の昇温工程時に、ガス抜き工程としての役目も兼ねて
数回取り出したり、あるいは１７０℃での高温保持中ま
たは分解処理後取り出したりする。Note that the timing for taking out the high temperature exhaust gas in the pressure vessel 1 into the preheating tank 8 is between 100°C and 170°C in the pressure vessel 1.
During the temperature raising step up to this point, it is taken out several times to also serve as a degassing step, or it is taken out during the high temperature holding at 170° C. or after the decomposition treatment.
昇温工程中あるいは分解処理中の排ガスの取り出しは、
圧力容器１のガス抜き工程としての役目も兼ねているの
で、昇温中あるいは分解中における圧力容器１内のアン
モニアガス濃度を低くし、それによりシアン廃液の分解
処理を促進できる。Exhaust gas removal during the temperature raising process or decomposition process is
Since it also serves as a degassing step for the pressure vessel 1, it is possible to lower the ammonia gas concentration within the pressure vessel 1 during temperature rise or decomposition, thereby promoting the decomposition treatment of cyanide waste liquid.
即ちアンモニアガスが飽和することによる分解反応の低
下を防ぎ、分解性能を高めることができる。That is, it is possible to prevent deterioration of the decomposition reaction due to saturation of ammonia gas and improve decomposition performance.
また予熱用の排出流体としてガスを取り出しているので
、配管の詰まり等が生じることもない。Furthermore, since the gas is taken out as the discharge fluid for preheating, clogging of the piping does not occur.
（第２実施例）
（１）第２図は本願の第１、第１、第２本発明を適用し
たシアン廃液処理装置の別の実施例を示している。エゼ
クタ−１８として第１図のものよりも小型のものを複数
個配置し、各エゼクタ−１８を予熱槽８のできるだけ底
部付近で噴射できるように配置している。エゼクタ−１
８は第３図に示すようにリング管２０に等間隔を隔てて
複数個（例えば６個）設けられ、それぞれ予熱槽８の中
央部に向かうように配置されている。リング管２０は垂
直状の管２１を介して第２図のガス導出管１６に接続し
ている。(Second Embodiment) (1) FIG. 2 shows another embodiment of the cyanide waste liquid treatment apparatus to which the first, first and second inventions of the present application are applied. A plurality of ejectors 18 smaller than those shown in FIG. 1 are arranged, and each ejector 18 is arranged so as to be able to spray as close to the bottom of the preheating tank 8 as possible. Ejector-1
As shown in FIG. 3, a plurality of (for example, six) 8 are provided at equal intervals in the ring tube 20, and each is arranged toward the center of the preheating tank 8. The ring pipe 20 is connected via a vertical pipe 21 to the gas outlet pipe 16 shown in FIG.
その他の構成は第１図と同様であり、同じ部品には同じ
番号を付している。The rest of the structure is the same as in FIG. 1, and the same parts are given the same numbers.
第２図の構造によると、複数の小型のエゼクタ−１８に
より予熱槽８の底部近くで排ガスを噴射するので、予熱
槽内での予熱温度のばらつき、例えば予熱槽内の上部と
下部との温度差及び中央部と周囲部とのばらつきがなく
なり、加熱効率が向上する。 ゛
しかもエゼクタ−１８を複数個用いているため、予熱槽
８内のシアン廃液の予熱温度を沸点近くまで上げること
が可能となり、その骨灰工程のおける圧力容器１内での
加熱用蒸気の投入量を減少でき、省エネ効果が発揮でき
るという利点もある。According to the structure shown in FIG. 2, since the exhaust gas is injected near the bottom of the preheating tank 8 by a plurality of small ejectors 18, there may be variations in the preheating temperature within the preheating tank, for example, the temperature between the upper and lower parts of the preheating tank. The difference and the variation between the center and the periphery are eliminated, and heating efficiency is improved. Moreover, since a plurality of ejectors 18 are used, it is possible to raise the preheating temperature of the cyanide waste liquid in the preheating tank 8 to near the boiling point, and the amount of heating steam input into the pressure vessel 1 during the bone ash process can be reduced. It also has the advantage of being able to reduce energy consumption and exhibit energy-saving effects.
勿論消音並びに消波効果も期待できることはいうまでも
ない。Of course, it goes without saying that sound silencing and wave-dampening effects can also be expected.
（第３実施例）
第４図は第１、第３発明を適用した例であり、予熱用の
高温排出流体として、処理済液を利用している。(Third Embodiment) FIG. 4 shows an example to which the first and third inventions are applied, in which a treated liquid is used as the high-temperature discharge fluid for preheating.
即ち圧力容器１の処理済液出口部に４に排出管２５を接
続し、該排出管２５を予熱槽８内に延出し、予熱槽８内
で幾重かに蛇行させた後、冷却槽１７に至るようにして
いる。That is, a discharge pipe 25 is connected to the outlet of the treated liquid in the pressure vessel 1, and the discharge pipe 25 is extended into the preheating tank 8, meandering several times within the preheating tank 8, and then transferred to the cooling tank 17. I'm trying to reach it.
また圧力容器１の排ガス取出部５は例えば冷却器２６を
介してアンモニアガス吸収槽９に接続されている。Further, the exhaust gas extraction section 5 of the pressure vessel 1 is connected to an ammonia gas absorption tank 9 via a cooler 26, for example.
第４図の構造によると、圧力容器１内で分解された後の
処理済液の熱により予熱槽８内の未処理シアン廃液は予
熱される。一方処理済液は、予熱槽８で冷却されて冷却
槽１７に送られることになるので、冷却槽１７での冷却
用エネルギーの節約になる。According to the structure shown in FIG. 4, the untreated cyanide waste liquid in the preheating tank 8 is preheated by the heat of the treated liquid after being decomposed in the pressure vessel 1. On the other hand, since the treated liquid is cooled in the preheating tank 8 and sent to the cooling tank 17, the energy for cooling in the cooling tank 17 is saved.
なお第３図において、第１図と同じ部品には同じ番号を
付している。In FIG. 3, the same parts as in FIG. 1 are given the same numbers.
（発明の効果）
以上説明したように本願節１、第２、第３発明は、シア
ン廃液処理方法及び処理装置において：（１）圧力容器
１内で生じる高温排出流体（排ガスあるいは処理済液）
の排熱を利用して、予熱槽８内の未処理シアン廃液を予
熱するので、特別のヒータ等を備えることなく未処理シ
アン廃液の予熱を行え、省エネルギー化を達成できる。(Effects of the Invention) As explained above, the first, second, and third inventions of the present application provide a cyanide waste liquid treatment method and a treatment apparatus including: (1) High-temperature discharged fluid (exhaust gas or treated liquid) generated in the pressure vessel 1;
Since the waste heat is used to preheat the untreated cyanide waste liquid in the preheating tank 8, the untreated cyanide waste liquid can be preheated without a special heater or the like, and energy saving can be achieved.
（２）また排出流体を冷却することになるので、排出流
体を冷却するための冷却装置を省略できたり、あるいは
そのような冷却装置の消費エネルギーを節約することが
できる。(2) Furthermore, since the discharged fluid is cooled, a cooling device for cooling the discharged fluid can be omitted, or the energy consumption of such a cooling device can be saved.
また第２発明の装置によると：
（１）排ガスを予熱槽８内の未処理シアン廃液に直接噴
射して予熱（直接加熱）するようにしているので、熱効
率がよく、加熱性能が良い。Further, according to the device of the second invention: (1) Since the exhaust gas is directly injected into the untreated cyanide waste liquid in the preheating tank 8 to preheat (directly heat), the thermal efficiency is good and the heating performance is good.
（２）圧力容器１の昇温工程あるいは分解工程中におけ
るガス抜きを兼ねることができるので、ガス抜きにより
圧力容器内のアンモニアガス濃度を低くし、それにより
シアン廃液の分解処理を促進することができる。即ちア
ンモニアガスが飽和することによる分解反応の低下を防
ぎ、分解性能を高めることができる。(2) Since it can also serve as degassing during the temperature raising process or decomposition process of the pressure vessel 1, degassing can lower the ammonia gas concentration in the pressure vessel, thereby promoting the decomposition treatment of cyanide waste liquid. can. That is, it is possible to prevent deterioration of the decomposition reaction due to saturation of ammonia gas and improve decomposition performance.
第３発明によると、処理済液の排熱を利用するので、処
理済液は予熱槽８で冷却されることになり、冷却槽１７
等での冷却用エネルギーの節約になる。According to the third invention, since the waste heat of the treated liquid is used, the treated liquid is cooled in the preheating tank 8, and the cooling tank 17
This saves energy for cooling, etc.
第１図は本願第１、第２発明が適用されるシアン廃液処
理装置の配管路図、第２図は本願第１、第２発明が適用
されるシアン廃液処理装置の別の実施例の配管路図、第
３図は第２図のエゼクタ−の上面拡大図、第４図は本願
第１、第３発明が適用されるシアン廃液処理装置の別の
実施例の配管路図である。１・・・圧力容器、３・・・
高温蒸気供給部、４・・・処理済液出口部、８・・・予
熱槽、１６・・・ガス導出管、２５・・・処理済液排出
管
特許出願人 三菱電線工業株式会社Fig. 1 is a piping route diagram of a cyanide waste liquid treatment apparatus to which the first and second inventions of the present application are applied, and Fig. 2 is a piping diagram of another embodiment of the cyanide waste liquid treatment apparatus to which the first and second inventions of the present application are applied. FIG. 3 is an enlarged top view of the ejector shown in FIG. 2, and FIG. 4 is a piping diagram of another embodiment of the cyan waste liquid treatment apparatus to which the first and third inventions of the present application are applied. 1...pressure vessel, 3...
High temperature steam supply section, 4... Treated liquid outlet section, 8... Preheating tank, 16... Gas outlet pipe, 25... Treated liquid discharge pipe Patent applicant Mitsubishi Cable Industries, Ltd.
Claims (3)
力容器内で、加熱用蒸気により高圧高温下でシアン廃液
を熱加水分解するシアン廃液処理方法において、圧力容
器内の高温排出流体を予熱槽内に導き、上記高温排出流
体の排熱により予熱槽の未処理シアン廃液の予熱を行う
ようにしたことを特徴とするシアン廃液処理における予
熱方法。(1) In a cyanide waste liquid treatment method that preheats cyanide waste liquid in a preheating tank and then thermally hydrolyzes the cyanide waste liquid under high pressure and high temperature in a cyanide decomposition pressure vessel using heating steam, the high temperature discharged fluid in the pressure vessel is A preheating method for cyanide waste liquid treatment, characterized in that the untreated cyanide waste liquid in the preheating tank is guided into a preheating tank, and the untreated cyanide waste liquid in the preheating tank is preheated by the exhaust heat of the high temperature discharged fluid.
水分解するシアン分解用圧力容器と、該圧力容器に供給
する未処理シアン廃液を予熱する予熱槽とを備えたシア
ン廃液処理装置において、圧力容器に、高温排出流体と
しての高温排ガスを取り出すガス導出管を接続し、該導
出管の出口を予熱槽内に開口したことを特徴とするシア
ン廃液処理における予熱装置。(2) A cyanide waste liquid treatment device comprising a cyanide decomposition pressure vessel that thermally hydrolyzes cyanide waste liquid under high pressure and high temperature using heating steam, and a preheating tank that preheats the untreated cyanide waste liquid supplied to the pressure vessel, 1. A preheating device for cyanide waste liquid treatment, characterized in that a gas outlet pipe for taking out high-temperature exhaust gas as a high-temperature exhaust fluid is connected to a pressure vessel, and an outlet of the outlet pipe is opened in a preheating tank.
水分解するシアン分解用圧力容器と、該圧力容器に供給
する未処理廃液を予熱する予熱槽とを備えたシアン廃液
処理装置において、圧力容器に、高温排出流体としての
処理済液を排出する排出管を接続し、該排出管を、予熱
槽内を通過するように配置したシアン廃液処理における
予熱装置。(3) In a cyanide waste liquid treatment equipment equipped with a cyanide decomposition pressure vessel that thermally hydrolyzes cyanide waste liquid under high pressure and high temperature using heating steam, and a preheating tank that preheats the untreated waste liquid supplied to the pressure vessel, A preheating device for cyan waste liquid treatment, in which a discharge pipe for discharging a treated liquid as a high-temperature discharge fluid is connected to a container, and the discharge pipe is arranged so as to pass through a preheating tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62274488A JPH0720580B2 (en) | 1987-10-29 | 1987-10-29 | Preheating method and device for treating cyan waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62274488A JPH0720580B2 (en) | 1987-10-29 | 1987-10-29 | Preheating method and device for treating cyan waste liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01115490A true JPH01115490A (en) | 1989-05-08 |
| JPH0720580B2 JPH0720580B2 (en) | 1995-03-08 |
Family
ID=17542386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62274488A Expired - Lifetime JPH0720580B2 (en) | 1987-10-29 | 1987-10-29 | Preheating method and device for treating cyan waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0720580B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016055440A (en) * | 2014-09-05 | 2016-04-21 | 株式会社ブリヂストン | Method and apparatus for manufacturing tire |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5390650A (en) * | 1977-01-20 | 1978-08-09 | Babcock Hitachi Kk | Waste water treatment |
| JPS55128552A (en) * | 1979-03-28 | 1980-10-04 | Dainichi Nippon Cables Ltd | Treatment of liquid containing cyano gold compound |
| JPS5721358A (en) * | 1980-07-11 | 1982-02-04 | Tsukishima Kikai Co Ltd | Deposition of waste liquid from acrylonitrile production |
| JPS6044084A (en) * | 1983-08-18 | 1985-03-08 | Kansai Coke & Chem Co Ltd | Treatment of desulfurization and decyanization waste liquid |
| JPS621796U (en) * | 1985-06-20 | 1987-01-08 |
-
1987
- 1987-10-29 JP JP62274488A patent/JPH0720580B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5390650A (en) * | 1977-01-20 | 1978-08-09 | Babcock Hitachi Kk | Waste water treatment |
| JPS55128552A (en) * | 1979-03-28 | 1980-10-04 | Dainichi Nippon Cables Ltd | Treatment of liquid containing cyano gold compound |
| JPS5721358A (en) * | 1980-07-11 | 1982-02-04 | Tsukishima Kikai Co Ltd | Deposition of waste liquid from acrylonitrile production |
| JPS6044084A (en) * | 1983-08-18 | 1985-03-08 | Kansai Coke & Chem Co Ltd | Treatment of desulfurization and decyanization waste liquid |
| JPS621796U (en) * | 1985-06-20 | 1987-01-08 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016055440A (en) * | 2014-09-05 | 2016-04-21 | 株式会社ブリヂストン | Method and apparatus for manufacturing tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0720580B2 (en) | 1995-03-08 |
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