JPH0128603B2 - - Google Patents
Info
- Publication number
- JPH0128603B2 JPH0128603B2 JP59088051A JP8805184A JPH0128603B2 JP H0128603 B2 JPH0128603 B2 JP H0128603B2 JP 59088051 A JP59088051 A JP 59088051A JP 8805184 A JP8805184 A JP 8805184A JP H0128603 B2 JPH0128603 B2 JP H0128603B2
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- valve
- tank
- air
- settling 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.)
- Expired
Links
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は酸洗処理後に発生した廃酸の処理工
程などに用いるスラツジ沈降槽におけるスラツジ
排出方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for discharging sludge in a sludge settling tank used in a process for treating waste acid generated after pickling.
酸洗処理工程で発生した廃酸はスラツジ沈降槽
を通し、廃酸中のスラツジを下部に沈殿させ、ス
ラツジと廃酸を分離して処理している。従来、沈
殿したスラツジはスラツジ沈降槽の下部に設けら
れた排出口から槽外のバケツト中に排出している
（鉄鋼製造法、第３分冊p.659）。このときスラツ
ジが排出口付近で固着化してスラツジの排出が不
可能になることがあつた。
The waste acid generated in the pickling process is passed through a sludge sedimentation tank, and the sludge in the waste acid is settled at the bottom, and the sludge and waste acid are separated and treated. Conventionally, settled sludge is discharged into a bucket outside the tank from a discharge port provided at the bottom of the sludge settling tank (Steel Manufacturing Method, Vol. 3, p. 659). At this time, the sludge sometimes became stuck near the discharge port, making it impossible to discharge the sludge.
そうした場合、従来は排出口出側から槽内部の
スラツジ固着部分を棒でつついたり、水洗したり
していたが、スラツジが酸性物質であるため安全
性に問題があり又作業性も悪いのでこのような作
業は非常に危惧されていた。 In such cases, conventionally, the stuck part of the sludge inside the tank was poked with a stick from the outlet side or washed with water, but since the sludge is an acidic substance, there are safety issues and the workability is also poor, so this method is not recommended. Such work was extremely dangerous.
本発明はスラツジ沈降槽の下部に沈降堆積し固
着化したスラツジを槽外に容易に排出することを
目的とするものである。
The object of the present invention is to easily discharge sludge that has settled and solidified at the bottom of a sludge settling tank to the outside of the tank.
本発明はスラツジ沈降槽１の排出口７の下に、
第１開閉弁２、小型タンク３および第２開閉弁４
をこの順に上方から下方へ接続して設けるととも
に、小型タンク３の下部に小型タンク３内に開口
し、且つエアー弁８を有するエアーノズル６を設
け、第１開閉弁２および第２開閉弁４を閉じエア
ー弁８を開いて小型タンク３内に圧縮空気を供給
し、小型タンク３内の圧力が元圧と同一になつた
後、エアー弁８を閉じ第１開閉弁２を開き小型タ
ンク３内の空気をスラツジ沈降槽１に供給して固
着したスラツジを分散微細化し、静置してスラツ
ジを沈降させた後、第２開閉弁４を開きスラツジ
を槽外に排出することを特徴とするスラツジ沈降
槽におけるスラツジ排出方法である。
In the present invention, below the outlet 7 of the sludge settling tank 1,
First on-off valve 2, small tank 3 and second on-off valve 4
are connected in this order from top to bottom, and an air nozzle 6 that opens into the small tank 3 and has an air valve 8 is provided at the bottom of the small tank 3, and a first on-off valve 2 and a second on-off valve 4. Close the air valve 8, open the air valve 8, and supply compressed air into the small tank 3. After the pressure inside the small tank 3 becomes the same as the original pressure, close the air valve 8 and open the first on-off valve 2. The air is supplied to the sludge settling tank 1 to disperse and finely adhere the stuck sludge, and after allowing the sludge to settle, the second on-off valve 4 is opened and the sludge is discharged out of the tank. This is a method for discharging sludge in a sludge settling tank.
以下に本発明を図面に示す装置例により詳細に
説明する。 The present invention will be explained in detail below using an example of the device shown in the drawings.
スラツジ沈降槽１の排出口７の下に第１開閉弁
２、小型タンク３および第２開閉弁４がこの順に
上方から下方へ接続して設けられており、小型タ
ンク３の下部にはエアー弁８を有するエアーノズ
ル６が設けられている。廃酸が該スラツジ沈降槽
１に導入され、廃酸中のスラツジが沈降している
時は第１開閉弁２は閉じられている。 Below the discharge port 7 of the sludge settling tank 1, a first on-off valve 2, a small tank 3, and a second on-off valve 4 are connected in this order from top to bottom, and an air valve is provided at the bottom of the small tank 3. An air nozzle 6 with 8 is provided. When waste acid is introduced into the sludge settling tank 1 and the sludge in the waste acid is settling, the first on-off valve 2 is closed.
スラツジ沈降槽１にスラツジが沈降し所定量堆
積すると、スラツジ沈降槽１内のスラツジを槽外
のバケツト（図示せず）に排出する。このとき第
１開閉弁２及び第２開閉弁４は開、圧縮空気供給
口としてのエアーノズル６はエアー弁８によつて
閉となつている。スラツジ沈降槽１の下部でスラ
ツジがつまつて排出されないときは第１開閉弁２
及び第２開閉弁４を閉じ、エアー弁８を開いて小
型タンク３内に圧縮空気を供給する。しばらくし
て小型タンク３内の圧力が上昇し圧縮空気供給源
の元圧と同一になつた後、エアー弁８を閉じ第１
開閉弁２を開くと小型タンク３内の圧縮空気が該
弁２を通つて瞬間的に膨張浮上し、スラツジ沈降
槽１の下部でバブリングを起こす。するとスラツ
ジ沈降槽１の下部で固着化したスラツジがエアー
バブリング作用により分散微細化される。撹拌に
より微細化されたスラツジは静置することにより
スラツジ沈降槽１の下部および小型タンク３内に
沈降する。 When the sludge settles and accumulates in a predetermined amount in the sludge settling tank 1, the sludge in the sludge settling tank 1 is discharged into a bucket (not shown) outside the tank. At this time, the first on-off valve 2 and the second on-off valve 4 are open, and the air nozzle 6 as a compressed air supply port is closed by the air valve 8. If the sludge is clogged at the bottom of the sludge settling tank 1 and cannot be discharged, the first on-off valve 2
Then, the second on-off valve 4 is closed, and the air valve 8 is opened to supply compressed air into the small tank 3. After a while, the pressure inside the small tank 3 rises and becomes the same as the original pressure of the compressed air supply source, and then the air valve 8 is closed and the first
When the on-off valve 2 is opened, the compressed air in the small tank 3 momentarily expands and floats through the valve 2, causing bubbling in the lower part of the sludge settling tank 1. Then, the sludge solidified in the lower part of the sludge settling tank 1 is dispersed and made fine by the air bubbling action. The sludge that has been made into fine particles by stirring is left to stand still and settles in the lower part of the sludge settling tank 1 and in the small tank 3.
そこで第２開閉弁４を開き、スラツジを槽外の
バケツトに排出する。小型タンク３およびスラツ
ジ沈降槽１内のスラツジが排出された後、直ちに
第１開閉弁２を閉じ、次に第２開閉弁４を閉じ
る。このため通常は小型タンク３内には廃酸およ
びスラツジは存在しないが、万一小型タンク３内
においてスラツジが固着化し詰りを生じた場合も
前記同様第１開閉弁２及び第２開閉弁４を閉じた
状態でエアー弁８を開いて小型タンク３内に圧縮
空気を供給してスラツジを分散微細化した後、エ
アー弁８を閉じて第２開閉弁４を開き、小型タン
ク３内のスラツジを圧縮空気の膨張作用を利用し
て排出する。これ等の作業は各弁を自動的に順次
作動させて行うことができる。 Then, the second on-off valve 4 is opened and the sludge is discharged into a bucket outside the tank. Immediately after the sludge in the small tank 3 and sludge settling tank 1 is discharged, the first on-off valve 2 is closed, and then the second on-off valve 4 is closed. Therefore, normally there is no waste acid or sludge in the small tank 3, but in the unlikely event that sludge becomes stuck in the small tank 3 and causes a blockage, the first on-off valve 2 and the second on-off valve 4 should be operated as described above. With the air valve 8 closed, open the air valve 8 to supply compressed air into the small tank 3 to disperse and atomize the sludge, then close the air valve 8 and open the second on-off valve 4 to release the sludge in the small tank 3. Discharge using the expansion action of compressed air. These operations can be performed by automatically operating each valve in sequence.
なお、スラツジ沈降槽１内でスラツジが強固に
固着化し、前記方法では排出困難な場合は、前記
エアーバブリングとスラツジ沈降槽１内の下部に
取付けた水洗シヤワー５でスラツジを小型タンク
３へ洗い流す水洗シヤワーとを併用することによ
りスラツジを容易に排出できる。 In addition, if the sludge is firmly fixed in the sludge settling tank 1 and difficult to discharge using the above method, water washing is performed in which the sludge is washed away into the small tank 3 using the air bubbling and the washing shower 5 installed at the bottom of the sludge settling tank 1. Sludge can be easily discharged by using it together with a shower.
本発明によつて、スラツジ沈降槽にスラツジつ
まりが生じた場合、該スラツジを容易に排出する
ことができる。
According to the present invention, when sludge clogging occurs in the sludge settling tank, the sludge can be easily discharged.
図面は本発明法を実施する装置例の立面図であ
る。
１…スラツジ沈降槽、２…第１開閉弁、３…小
型タンク、４…第２開閉弁、５…水洗シヤワー、
６…エアーノズル、７…排出口、８…エアー弁。
The drawing is an elevational view of an exemplary apparatus for carrying out the method of the invention. 1... Sludge settling tank, 2... First on-off valve, 3... Small tank, 4... Second on-off valve, 5... Flush shower,
6... Air nozzle, 7... Discharge port, 8... Air valve.
Claims (1)
閉弁２、小型タンク３および第２開閉弁４をこの
順に上方から下方へ接続して設けるとともに、小
型タンク３の下部に小型タンク３内に開口し、且
つエアー弁８を有するエアーノズル６を設け、第
１開閉弁２および第２開閉弁４を閉じエアー弁８
を開いて小型タンク３内に圧縮空気を供給し、小
型タンク３内の圧力が元圧と同一になつた後、エ
アー弁８を閉じ第１開閉弁２を開き小型タンク３
内の空気をスラツジ沈降槽１に供給して固着した
スラツジを分散微細化し、静置してスラツジを沈
降させた後、第２開閉弁４を開きスラツジを槽外
に排出することを特徴とするスラツジ沈降槽にお
けるスラツジ排出方法。1 Below the discharge port 7 of the sludge settling tank 1, a first on-off valve 2, a small tank 3, and a second on-off valve 4 are connected in this order from top to bottom, and a small tank 3 is provided below the small tank 3. An air nozzle 6 that opens inward and has an air valve 8 is provided, and the first on-off valve 2 and the second on-off valve 4 are closed and the air valve 8 is closed.
After the pressure inside the small tank 3 becomes the same as the original pressure, the air valve 8 is closed and the first on-off valve 2 is opened to supply compressed air into the small tank 3.
The air is supplied to the sludge settling tank 1 to disperse and finely adhere the stuck sludge, and after allowing the sludge to settle, the second on-off valve 4 is opened and the sludge is discharged out of the tank. Sludge discharge method in a sludge settling tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8805184A JPS60230988A (en) | 1984-05-01 | 1984-05-01 | Sludge discharging apparatus in sludge sedimentation vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8805184A JPS60230988A (en) | 1984-05-01 | 1984-05-01 | Sludge discharging apparatus in sludge sedimentation vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60230988A JPS60230988A (en) | 1985-11-16 |
| JPH0128603B2 true JPH0128603B2 (en) | 1989-06-05 |
Family
ID=13932031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8805184A Granted JPS60230988A (en) | 1984-05-01 | 1984-05-01 | Sludge discharging apparatus in sludge sedimentation vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60230988A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003024713A (en) * | 2001-07-19 | 2003-01-28 | Mk:Kk | Highly-concentrated sludge fluidization apparatus and highly-concentrated sludge discharge method in sludge settling tank |
| JP4311559B2 (en) * | 2004-12-17 | 2009-08-12 | ジャパン・フィールド株式会社 | Apparatus for removing precipitates in surface treatment liquid |
| KR100926610B1 (en) | 2007-10-24 | 2009-11-11 | 주식회사 포스코 | Mixed acid sludge automatic removal device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5742309A (en) * | 1980-08-28 | 1982-03-09 | Setsuo Asayama | Automatic sludge discharger |
-
1984
- 1984-05-01 JP JP8805184A patent/JPS60230988A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60230988A (en) | 1985-11-16 |
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