DE2029244A1 - Pickling plant liquor - vacuum and pressure actuated transfer - Google Patents

Pickling plant liquor - vacuum and pressure actuated transfer

Info

Publication number
DE2029244A1
DE2029244A1 DE19702029244 DE2029244A DE2029244A1 DE 2029244 A1 DE2029244 A1 DE 2029244A1 DE 19702029244 DE19702029244 DE 19702029244 DE 2029244 A DE2029244 A DE 2029244A DE 2029244 A1 DE2029244 A1 DE 2029244A1
Authority
DE
Germany
Prior art keywords
pickling
vacuum
compressed air
pressure actuated
pickling plant
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
Application number
DE19702029244
Other languages
German (de)
Inventor
Ewald 5419 Weidenhahn Wörsdörfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEWERK KERAMCHEMIE
Original Assignee
GEWERK KERAMCHEMIE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GEWERK KERAMCHEMIE filed Critical GEWERK KERAMCHEMIE
Priority to DE19702029244 priority Critical patent/DE2029244A1/en
Publication of DE2029244A1 publication Critical patent/DE2029244A1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

Continuous pickling plant is quickly filled and emptied without the use of pumps by means of vacua and compressed air, which lend themselves well to automatic control and measurement. When compressed air is used the prefd. working pressure is 1.5 atm. The advantage of the method is that it greatly reduces maintenance.

Description

Verfahren zum scnen schnellen Entleeren und Füllen von kontinuierlichen Bandbeizanlagen Nachteilig beim kontinuierlichen Beizen von bandförmigem Material in Horizontalbeizanlagen ist das Überbeizen bei Betriebsstörungen und beim Abreißen des Bandes. Das bandförmige Beizgut bleibt dann zu langer Säureeinwirkung ausgesetzt und das Auffinden der Enden des Beizgutes ist mit Belästigung der mit der Wartung der Beizanlagen betrauten Personen durch Säuredämpfe verbunden.Method of rapid emptying and filling of continuous Strip pickling systems Disadvantageous when continuously pickling strip-shaped material In horizontal pickling plants, overpickling occurs in the event of malfunctions and tears of the tape. The strip-shaped pickling material is then exposed to acid for too long and finding the ends of the pickling material is a nuisance with maintenance persons entrusted with the pickling plants are connected by acid fumes.

Bereits aus der deutschen Patentschrift 907 963 ist es daher bekannt, die Beizsäure in einem Vorratsbehälter unter der Beizanlage-zu lagern und die Beizflüssigkeit vermittels Düsen auf das bandförmige Beizgut aufzusprühen.It is therefore already known from German patent specification 907 963 The pickling acid and the pickling liquid are to be stored in a storage tank under the pickling plant spray onto the strip-shaped pickling material by means of nozzles.

Die ablaufende Beizflüssigkeit wird dabei in kontinuierlichem Umlauf wieder dem Vorratsbehälter für die Beizflüssigkeit zugeleitet.The pickling liquid running off is in continuous circulation fed back to the storage tank for the pickling liquid.

Man ist auch dazu übergegangen, die Beizbehälter als Turmbeizen auszubilden und senkrecht zu stellen für schnellen Flüssigkeitsablauf vom Band. Nachteil solcher Beizanlagen ist, daß beim Abreißen des Bandes starke Beschädigungen des Beizturmes auftreten können.There has also been a move towards designing the pickling tanks as pickling towers and can be placed vertically for fast liquid drainage from the belt. Disadvantage of such Pickling systems is that when the strip is torn off, the pickling tower is severely damaged may occur.

Gegenstand der vorliegenden Erfindung ist ein Verfahren zum schnellen Entleeren und Füllen von kontinuierlichen Beizanlagen, dadurch gekennzeichnet, daß das Entleeren und Füllen pumpenlos durch Anwendung von Vakuum und Preßluft durchgeführt werden, wobei das Entleeren und Füllen der Beizanlagen meß- und regeltechnisc0 gesteuert werden.The present invention is a method for rapid Emptying and filling of continuous pickling plants, characterized in that emptying and filling is carried out without a pump using vacuum and compressed air are controlled, with the emptying and filling of the pickling systems measuring and regulating technology will.

Überraschenderweise gelingt es beim erfindungsgemäßen Verfahren, die Vorteile der Horizontalbeizen, insbesondere die hohen Durchlaufgeschwindigkeiten des Bandes, mit den Vorteilen der Vertikalbeizen zu kombinieren.Surprisingly, it succeeds in the method according to the invention, the Advantages of horizontal pickling, especially the high throughput speeds of the strip to combine with the advantages of vertical pickling.

Beispielsweise kann das erfindungsgemäße schnelle Entleeren und Füllen von kontinuierlichen Bandbeizanlagen folgendermaßen durchgeführt werden: 3 Für jede Beizzelle wird ein Auffangtank mit einem Nutzvolumen von 75 m verwendet. Der Tank wird so angeordnet, daß die Rohrleitungsführung zwischen Beizzelle und Auffangtank möglichst geradlinig und kurz verläuft.For example, the inventive quick emptying and filling can be carried out by continuous strip pickling lines as follows: 3 for each A collecting tank with a usable volume of 75 m is used for the additional cell. The Tank is arranged so that the pipeline routing between Beizzelle and collecting tank is as straight and short as possible.

Das Ablassen der Beizllotte erfolgt über 2 Rohrleitungen NW 300 in einer.The pickling liquor is drained off via 2 pipes NW 300 in one.

Zeitspanne von 3 - 5 Minuten. Als Absperrorgane dienen Ringabsperrklappen mit Kraftkolbenantrieb, die pneumatisch geöffnet und geschlossen« werden. Die Öffnungs- bzw. Schließzeit kann zwischen 1,5 und 3 Sekunden einstellbar. liegen.Time span of 3 - 5 minutes. Ring butterfly valves serve as shut-off devices with power piston drive that are pneumatically opened and closed «. The opening or closing time can be set between 1.5 and 3 seconds. lie.

Die Entleerung des Tanks erfolgt vermittels Preßluft bei einem Druck von 1,5 atü durch eine Rohrleitung NW 150. Der Preßluftbedarf beträgt je Tank 3.The tank is emptied by means of compressed air at a pressure of 1.5 atü through a pipe NW 150. The compressed air requirement is 3 per tank.

75 m innerhalb maximal 5 Minuten, d.h. pro Minute mindestens 15 m3.75 m within a maximum of 5 minutes, i.e. at least 15 m3 per minute.

Beim Auftreten der Notwendigkeit der Entleerung einer Beizzelle werden auf der Steuertafel durch Druckknopf-Bedienung die 2 Ringabsperrklappen an den Behälterstutzen vermittels Preßluft von 5 - 6 atü geöffnet. Als Steuereinrichtungen können 4-Wege-Elektromagnetventile dienen. Am Schaltpult erscheint ein optisches Signal, daß die Absperrklappen geöffnet sind..When there is a need to drain a pickling cell on the control panel by push-button operation the 2 ring shut-off valves on the container nozzles opened by means of compressed air at 5 - 6 atmospheres. 4-way solenoid valves can be used as control devices to serve. An optical signal appears on the control panel that the shut-off valves are open are..

Gleichzeitig wird die Ringabsperrklappe in der Absaugerohrleitung, die elektrisch mit den vorgenannten Klappen verriegelt ist, geöffnet, damit die Luft aus dem Auffangtank entweichen kann.At the same time, the ring shut-off valve in the suction pipe, which is electrically locked with the aforementioned flaps, opened so that the Air can escape from the collecting tank.

Die Entleerung der Beizzelle erfolgt in maximal 5 Minuten.The emptying of the pickling cell takes a maximum of 5 minutes.

Die Rückfüllung der Säure in die Beizzellen erfolgt durch Zugabe der Preßluft in den Auffangtank. Durch Druckknopfbedienung auf der Steuertafel wird die Ringabsperrklappe über das 4-Wege-Ventil in der Luftzuführungsleitung geöffnet und gleichzeitig die Ringabsperrklappe in der Absaugeleitung geschlossen.The acid is backfilled into the beizal cells by adding the Compressed air in the collecting tank. By push-button operation on the control panel, the ring butterfly valve is opened via the 4-way valve in the air supply line and at the same time the ring shut-off valve in the suction line is closed.

Der Luftdruck beträgt 1,5 atü.The air pressure is 1.5 atü.

Falls das Flüssigkeitsvolumen bis unmittelbar vor die Unterkante des Tauchrohres absinkt, werden über Elektroniktaster die Ringabsperrklappe in der Preßluftleitung und die beiden Ringabsperrklappen in der Rückführungsleitung geschlossen.If the volume of liquid is just in front of the lower edge of the If the immersion tube drops, the ring shut-off valve in the compressed air line is activated via the electronic button and the two ring butterfly valves in the return line are closed.

Claims (1)

Patentanspruch Verfahren zum schnellen Entleeren und Füllen von kontinuierlichen Beizanlagen, d a d u r c h; g e k e n n z e i c h n e t, daß das Entleeren und Füllen pumpenlos durch Anwendung von Vakuum und Preßluft durchgeführt werden? wobei das Entleeren und Füllen der Beizanlagen meB- und regeltechnisch gesteuert werden.Method for the rapid emptying and filling of continuous Pickling plants, d a d u r c h; it is not noted that emptying and filling can be carried out without a pump by using a vacuum and compressed air? where the Emptying and filling of the pickling plants can be controlled by measurement and control technology. L e e r s e i t eL e r s e i t e
DE19702029244 1970-06-13 1970-06-13 Pickling plant liquor - vacuum and pressure actuated transfer Pending DE2029244A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702029244 DE2029244A1 (en) 1970-06-13 1970-06-13 Pickling plant liquor - vacuum and pressure actuated transfer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702029244 DE2029244A1 (en) 1970-06-13 1970-06-13 Pickling plant liquor - vacuum and pressure actuated transfer

Publications (1)

Publication Number Publication Date
DE2029244A1 true DE2029244A1 (en) 1971-12-23

Family

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Family Applications (1)

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Country Status (1)

Country Link
DE (1) DE2029244A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0369984A1 (en) * 1988-11-15 1990-05-23 Maschinenfabrik Andritz Actiengesellschaft Process and installation for pickling high-grade steel strip
EP0655518A1 (en) * 1993-11-30 1995-05-31 DANIELI & C. OFFICINE MECCANICHE S.p.A. System to re-circulate treatment material in processes of surface treatment and finishing
FR2869326A1 (en) * 2004-04-21 2005-10-28 Vai Clecim Sa Metallic strip pickling device for processing line, has supply pipe to fill tank by passing pressurized gaseous fluid from chamber`s bath to tank`s bath, and evacuation pipe to empty tank by passing fluid from latter bath to former bath
CN110158102A (en) * 2019-06-06 2019-08-23 江苏沙钢集团有限公司 A kind of quick acid discharge descaling bath and application method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0369984A1 (en) * 1988-11-15 1990-05-23 Maschinenfabrik Andritz Actiengesellschaft Process and installation for pickling high-grade steel strip
EP0655518A1 (en) * 1993-11-30 1995-05-31 DANIELI & C. OFFICINE MECCANICHE S.p.A. System to re-circulate treatment material in processes of surface treatment and finishing
US5510018A (en) * 1993-11-30 1996-04-23 Danieli & C. Officine Meccaniche Spa System to re-circulate treatment material in processes of surface treatment and finishing
CN1047410C (en) * 1993-11-30 1999-12-15 丹尼利机械厂联合股票公司 System to re-circulate treatment material in processes of surface treatment and finishing
FR2869326A1 (en) * 2004-04-21 2005-10-28 Vai Clecim Sa Metallic strip pickling device for processing line, has supply pipe to fill tank by passing pressurized gaseous fluid from chamber`s bath to tank`s bath, and evacuation pipe to empty tank by passing fluid from latter bath to former bath
CN110158102A (en) * 2019-06-06 2019-08-23 江苏沙钢集团有限公司 A kind of quick acid discharge descaling bath and application method
CN110158102B (en) * 2019-06-06 2023-09-19 江苏沙钢集团有限公司 Quick acid discharge pickling tank and use method thereof

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