EP0309945B1 - Einrichtung zum Aufbringen eines Entzunderungsmittels auf die Innenfläche einer Luppe - Google Patents

Einrichtung zum Aufbringen eines Entzunderungsmittels auf die Innenfläche einer Luppe Download PDF

Info

Publication number
EP0309945B1
EP0309945B1 EP88115722A EP88115722A EP0309945B1 EP 0309945 B1 EP0309945 B1 EP 0309945B1 EP 88115722 A EP88115722 A EP 88115722A EP 88115722 A EP88115722 A EP 88115722A EP 0309945 B1 EP0309945 B1 EP 0309945B1
Authority
EP
European Patent Office
Prior art keywords
carrier gas
loop
passage
gas stream
descaling agent
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 - Lifetime
Application number
EP88115722A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0309945A3 (en
EP0309945A2 (de
Inventor
Hansjörg Furrer
Norbert Richle
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.)
Lonza AG
Original Assignee
Lonza AG
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 Lonza AG filed Critical Lonza AG
Priority to AT88115722T priority Critical patent/ATE76335T1/de
Publication of EP0309945A2 publication Critical patent/EP0309945A2/de
Publication of EP0309945A3 publication Critical patent/EP0309945A3/de
Application granted granted Critical
Publication of EP0309945B1 publication Critical patent/EP0309945B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • C23G3/04—Apparatus for cleaning or pickling metallic material for cleaning pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
    • B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
    • B24C3/327—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes by an axially-moving flow of abrasive particles without passing a blast gun, impeller or the like along the internal surface

Definitions

  • the invention relates to a device for applying a descaling agent to the inner surface of a glowing billet in the manufacture of seamless tubes and to a method in which the device is used.
  • a method for descaling the inner surface of glowing blanks in the manufacture of seamless tubes and a device for carrying out this method are known (EP-A-0 133 937).
  • the carrier gas stream loaded with the substance namely a descaling agent
  • the swirl is conducted with the swirl directly through the hollow body, namely the glowing cap.
  • the swirl brings a more even distribution of the substance in the carrier gas and the centrifugal force that occurs as a result of the swirl brings a larger part of the substance onto the inner surface of the hollow body without following gravity.
  • the loaded carrier gas stream with the swirl must first force the air at rest in the cavity through and out of the cavity. Part of its swirl is transferred to this air and is lost for the application of the substance to the inner surface of the hollow body.
  • the loaded carrier gas stream flows through the cavity, its velocity and swirl are less near the inner surface than in the center of the cavity cross section. The flow becomes laminar because of the friction on the inner surface, especially if it is rough, for example in the case of a loophole, covered with a layer of scale. Overall, only part of the swirl imparted to the loaded carrier gas stream is effective for applying the substance to the inner surface.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of improving the method and, above all, the device of the type mentioned, to a larger part of the substance with which the carrier gas stream to which the swirl was given is loaded to bring the inner surface of the hollow body.
  • twist is to be understood in the sense of a screwing movement or a helical movement.
  • the advantages achieved by the invention are essentially to be seen in the fact that the loaded carrier gas stream with the swirl when entering the cavity does not encounter still air, but rather the additional, unloaded gas stream which is in the same direction and with a swirl of the same direction of rotation how the laden carrier gas stream is already flowing through the cavity.
  • the loaded carrier stream acts immediately at full speed and with all the twist given to it for applying the substance to the inner surface, from one end of the cavity to the other.
  • Air is preferably used as the carrier gas and as an additional gas.
  • the descaling agent can be in powder or granular form.
  • compositions can be used as descaling agents, but preference is given to those which, inter alia, are used. are listed in European application 0 169 413.
  • the gas flow leaving the void containing the carrier gas and the additional gas as well as a remainder of the substance can be supported by conventional means to support the flow in the void Devices are suctioned off, the rest of the material, if it consists of fine particles, can be collected in a separator for further use or recirculation.
  • the invention is explained in more detail below with reference to a drawing which represents only one embodiment.
  • the single figure shows a perspective view of a partially sectioned device for carrying out the method for applying a descaling agent to the inner surface of a plate, the cavity of which is largely cylindrical.
  • An essential part in connection with the invention is a passage element 1 for a carrier gas stream loaded with the substance.
  • This passage member 1 can be designed as a cylinder or as a passage with a square or rectangular cross section.
  • the cylindrical shape is advantageously used.
  • Baffles 3 are arranged in the passage space 2 of the passage member 1 and form a swirl generator for the loaded carrier gas stream.
  • part of the guide plates 3 is designed as a feed device 4, in the drawing as nozzles 4, for an additional gas not loaded with the substance. Their outflow directions are at the same angle to the guide plate 3, based on the axis 6. This ensures that the gas is given a swirl. The direction of rotation is irrelevant to the effect of the application.
  • an intermediate space 12 which is open on the circumference, e.g. 15 to 35 mm, preferably 20 mm in length, as a result of which the effect known in jet apparatus (jet pumps, atomizers) is achieved, which leads to a better distribution of the substance in the carrier gas stream leaving the passage element.
  • jet apparatus jet pumps, atomizers
  • an annular space with gas supply which is closed to the outside and surrounds the intermediate space can be provided.
  • Lines 13 leading to the nozzles 4 run along the passage member 1 and are provided via a connection 15 for the supply of the additional gas.
  • the angle of the cone 18, measured in relation to the axis 6, is expediently chosen between 20 and 50 °.
  • the angle is preferably 40 °.
  • the guide plates 3 are straight or slightly curved, at an angle, measured at the end of the guide plate, from 15 to 25 ° to the axis 6, preferably from 20 ° to the axis 6.
  • the nozzles 4 also have the function of baffles 3. That is, some of the baffles 3 are designed as nozzles 4. Their angle to the axis consequently corresponds to that of the guide plates 3. Three to six guide plates 3, preferably four guide plates 3, are expediently arranged in a passage element 1.
  • Two to three of these guide plates 3, preferably two of the guide plates 3, are designed as nozzles 4.
  • the nozzles 4, viewed from the cross section of the passage element 1, are advantageously arranged opposite one another.
  • the device according to the invention is expediently used for amounts of 100 to 1,000 g of descaling agent.
  • passage elements 1 and their components can be varied in size.
  • the inner surface of glowing blanks is advantageously descaled for the production of seamless, 4 to 12 meter long tubes with an inside diameter of 10 to 40 cm.
  • the procedure is such that the device is brought to the plate via a displacement unit with the aid of the centering device 8, which engages in the plate, and a spring device 9. Then air not loaded with the descaling agent is blown through the nozzles 4 into the slugs at a pressure of appropriately 2 to 6 bar. This creates two helical, axially offset flows of this air in the cavity. At the same time or immediately afterwards, the air flow loaded with descaling agent begins. This is correspondingly a swirl in passage organ 1 through the baffles 3 granted.
  • the pressure of the loaded air flow also suitably ranges between 2 and 6 bar.
  • the gas supply is cut off, the displacement unit is withdrawn and the system is ready to descaled the next blow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Cleaning In General (AREA)
  • Coating Apparatus (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Control Of Metal Rolling (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Fluid-Damping Devices (AREA)
  • Nozzles (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Fire-Extinguishing Compositions (AREA)
  • Casting Devices For Molds (AREA)
  • Gas Separation By Absorption (AREA)
EP88115722A 1987-09-29 1988-09-23 Einrichtung zum Aufbringen eines Entzunderungsmittels auf die Innenfläche einer Luppe Expired - Lifetime EP0309945B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88115722T ATE76335T1 (de) 1987-09-29 1988-09-23 Einrichtung zum aufbringen eines entzunderungsmittels auf die innenflaeche einer luppe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3777/87A CH674164A5 (en, 2012) 1987-09-29 1987-09-29
CH3777/87 1987-09-29

Publications (3)

Publication Number Publication Date
EP0309945A2 EP0309945A2 (de) 1989-04-05
EP0309945A3 EP0309945A3 (en) 1990-05-30
EP0309945B1 true EP0309945B1 (de) 1992-05-20

Family

ID=4263265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88115722A Expired - Lifetime EP0309945B1 (de) 1987-09-29 1988-09-23 Einrichtung zum Aufbringen eines Entzunderungsmittels auf die Innenfläche einer Luppe

Country Status (13)

Country Link
US (1) US5102468A (en, 2012)
EP (1) EP0309945B1 (en, 2012)
JP (1) JP2737168B2 (en, 2012)
CN (1) CN1020073C (en, 2012)
AT (1) ATE76335T1 (en, 2012)
CA (1) CA1314793C (en, 2012)
CH (1) CH674164A5 (en, 2012)
CS (1) CS274438B2 (en, 2012)
DE (1) DE3871309D1 (en, 2012)
ES (1) ES2031564T3 (en, 2012)
MX (1) MX170721B (en, 2012)
SU (1) SU1620043A3 (en, 2012)
YU (1) YU178488A (en, 2012)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111673879A (zh) * 2020-06-08 2020-09-18 郑州航空工业管理学院 绿色吸甲醛混凝土板及成型装置

Family Cites Families (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735814A (en) * 1956-02-21 Die forging compound
US679756A (en) * 1901-05-23 1901-08-06 William Bonbright Kennedy Steam and hot-air flue-cleaner.
US998762A (en) * 1911-05-19 1911-07-25 Cement Appliances Company Apparatus for combining comminuted solids and liquid.
US1577052A (en) * 1925-07-23 1926-03-16 Auspitzer Otto Method and apparatus for comminuting solids and forming colloidal solutions
US1690664A (en) * 1926-01-16 1928-11-06 Carr Fastener Co Ltd Separable fastener
US1944273A (en) * 1929-06-06 1934-01-23 Western Electric Co Lubricating compound
US1987724A (en) * 1930-11-08 1935-01-15 Noble & Wood Machine Co Colloid mill
US1989507A (en) * 1933-05-03 1935-01-29 Diescher Tube Mills Inc Rolling mill mandrel
US1994273A (en) * 1933-12-26 1935-03-12 Goebbel Louis Ornamented lining fabric
US2176879A (en) * 1937-11-20 1939-10-24 Acheson Colloids Corp Method of disintegrating, dispersing and stabilizing graphite and product
US2316571A (en) * 1942-06-04 1943-04-13 Buckeye Lab Inc Apparatus for treating rolling oils
US2588625A (en) * 1945-03-15 1952-03-11 Aluminum Co Of America Forging lubricant and method of using same
NL177969C (nl) * 1952-04-30 Mitsui Petrochemical Ind Uit ten minste twee lagen bestaande buisvormige structuur voor irrigatie.
DE1206677B (de) * 1960-04-18 1965-12-09 Klean Kote Inc Verfahren und Einrichtung zum Reinigen von Rohrleitungen durch Einblasen eines Sand-Luft-Gemisches
US3198735A (en) * 1961-10-20 1965-08-03 Edward R Lamson Solid lubricant composition and method for lubricating anti-friction bearing structures
US3137974A (en) * 1962-01-29 1964-06-23 Wyatt S Kirkland Spin-blast tool
US3242075A (en) * 1962-04-09 1966-03-22 Acheson Ind Inc High temperature lubricant
GB1012442A (en) * 1962-05-22 1965-12-08 Klean Kote Inc Improvements in or relating to pipeline cleaning methods and apparatus
US3213024A (en) * 1962-07-17 1965-10-19 Socony Mobil Oil Co Inc High temperature lubricant
US3139711A (en) * 1962-08-28 1964-07-07 Schlumberger Well Surv Corp Pipeline cleaning systems
US3341454A (en) * 1963-02-25 1967-09-12 Hodson Corp Lubricant composition
NL130355C (en, 2012) * 1964-09-09
US3344065A (en) * 1965-01-25 1967-09-26 Molykote Produktions G M B H Extreme pressure lubricants
US3919158A (en) * 1966-06-18 1975-11-11 Ciba Geigy Ag Polyvinyl chloride plasticized with mixed phosphate esters
US3384580A (en) * 1967-05-09 1968-05-21 Acheson Ind Inc Graphite dispersions
GB1223562A (en) * 1967-09-05 1971-02-24 British Petroleum Co Improved method of preparing oleophilic compounds
US3472770A (en) * 1967-09-08 1969-10-14 Chevron Res Novel pinion grease
GB1251044A (en, 2012) * 1968-01-26 1971-10-27
US3838048A (en) * 1968-06-17 1974-09-24 Diamond Shamrock Corp Polyvinylfluoride bearings
US3549206A (en) * 1969-05-06 1970-12-22 Cons Eng Co Self-purging,pneumatic,conveying apparatus additionally equipped as with agitator and/or scale
GB1374976A (en) * 1970-12-01 1974-11-20 British Petroleum Co Oleophilic graphite
US3801504A (en) * 1971-03-22 1974-04-02 Texaco Inc Non-flammable water based hot forging lubricating compositions
US3698953A (en) * 1971-05-27 1972-10-17 Elca Battery Co Galvanic cell
FR2227182B2 (en, 2012) * 1973-01-26 1979-01-19 Usinor
IT964014B (it) * 1972-08-16 1974-01-21 Cavallucci A Dispositivo per eseguire la sabbia tura mediante graniglia metallica o simile ad esempio all interno di tubi
US3806453A (en) * 1973-02-23 1974-04-23 Kaiser Aluminium Chem Corp Metal working lubricant
US3908038A (en) * 1973-03-28 1975-09-23 Allied Chem Thermoplastic molding compositions
US3918284A (en) * 1973-04-20 1975-11-11 Youngstown Sheet And Tube Co Seamless tube mill piercer mandrel and assembly
US3833502A (en) * 1973-04-30 1974-09-03 Nalco Chemical Co Method for improving the adherence of metalworking coolants to metal surfaces
JPS5216826B2 (en, 2012) * 1973-06-13 1977-05-11
US4055503A (en) * 1973-10-11 1977-10-25 Robert Bosch G.M.B.H. Lubricating powder and method of producing same and relatively slideable components
GB1438215A (en) * 1974-05-08 1976-06-03 Lonz Ltd High temperature lubricant
US4039337A (en) * 1974-10-23 1977-08-02 Ball Brothers Research Corporation Release coating for glass manufacture
US3994847A (en) * 1974-12-30 1976-11-30 Ball Corporation Aqueous dispersion of polyphenylene sulfide metal phosphate binder and solid lubricant for glass molds coating
US4050932A (en) * 1975-04-07 1977-09-27 General Motors Corporation Colloidal graphite forging lubricant and method
US3983042A (en) * 1975-10-24 1976-09-28 Wyman-Gordon Company Water-based forging lubricant
US4104178A (en) * 1975-10-24 1978-08-01 Wyman-Gordon Company Water-based forging lubricant
CA1075223A (en) * 1975-12-12 1980-04-08 Donald G. Needham Poly (arylene sulfide) antifriction composition
SU586195A1 (ru) * 1976-05-19 1977-12-30 Институт Химии Высокомолекулярных Соединений Ан Украинской Сср Смазка дл холодной обработки металлов давлением "спга-1
US4090666A (en) * 1976-05-19 1978-05-23 Coors Container Company Gun for tribo charging powder
US4055025A (en) * 1976-11-22 1977-10-25 Union Carbide Corporation Apparatus for improved cleaning of pipeline inlets
GB1600734A (en) * 1977-03-08 1981-10-21 British Petroleum Co Fire resistant grease
US4321295A (en) * 1977-12-23 1982-03-23 Ramu International Modified graphite and process for using same
FR2429051A1 (fr) * 1978-06-20 1980-01-18 Trefilunion Proc
US4206060A (en) * 1978-10-23 1980-06-03 Sumitomo Kinzoku Kogyo Kabushiki Kaisha Bolt and nut unit coated with lubricant
FR2440985A1 (fr) * 1978-11-07 1980-06-06 Nord Tech Rech Applic Compositions additives pour huile pour moteurs a combustion interne
DE2849617A1 (de) * 1978-11-15 1980-05-29 Dow Corning Gmbh Waessriges schmiermittel
JPS6041829B2 (ja) * 1979-01-06 1985-09-19 株式会社日立製作所 非水電解液電池用正極の製造法
US4228020A (en) * 1979-05-04 1980-10-14 Edwin Cooper, Inc. Lubricating oil composition
US4351815A (en) * 1979-06-11 1982-09-28 Columbian Chemicals Company Battery carbon black
US4339897A (en) * 1979-11-07 1982-07-20 Schmidt Manufacturing, Inc. Sandblasting methods and apparatus
JPS56139212A (en) * 1980-04-02 1981-10-30 Kawasaki Steel Corp Method and apparatus for supplying rolling mill oil
FR2483265A1 (fr) * 1980-05-29 1981-12-04 Nihon Plant Service Center Ltd Procede et dispositif pour revetir la surface interne d'un tuyau, conduite, canalisation ou analogue
US4357249A (en) * 1980-09-11 1982-11-02 Arguto, Inc. Self-lubricating bearing and the like, and method of making same
US4470939A (en) * 1980-09-25 1984-09-11 Duracell Inc. Method of electrode formation
US4357953A (en) * 1981-02-26 1982-11-09 Sterling Drug Inc. Apparatus for slurrying powdered solids
US4490077A (en) * 1981-07-28 1984-12-25 Nippon Kokan Kabushiki Kaisha Apparatus for continuously measuring flow rate of fine material flowing through transport pipe
JPS58104833A (ja) * 1981-12-12 1983-06-22 Kawasaki Steel Corp １個の粉粒体分配輸送タンクから粉粒体を複数供給端に質量流量を任意の設定値に制御して連続供給する方法及びその装置
JPS58167018A (ja) * 1982-03-29 1983-10-03 Hitachi Ltd 圧延潤滑油装置
GB2123917B (en) * 1982-04-30 1986-02-12 Hakko Co Lining underground pipes
US4535812A (en) * 1982-07-12 1985-08-20 The Boc Group, Inc. Time controlled gas flows
DE3227592C1 (de) * 1982-07-21 1983-07-21 Mannesmann AG, 4000 Düsseldorf Verfahren zum Herstellen einer abriebfesten und korrosionsbestaendigen Zementmoertelauskleidung in Metallrohren
US4456539A (en) * 1982-07-29 1984-06-26 Mobil Oil Corporation Triazole-dithiophosphate reaction product and lubricant compositions containing same
US4452169A (en) * 1982-09-24 1984-06-05 Shinich Matsuda Reviving apparatus for fluid passages
ZA84247B (en) * 1983-02-18 1984-09-26 Lonza Ag Parting and lubricating agent in solid form
CH655516B (en, 2012) * 1983-08-17 1986-04-30
EP0161318B1 (en) * 1983-08-30 1992-11-04 MITSUI TOATSU CHEMICALS, Inc. Iodine cell
US4687598A (en) * 1983-11-07 1987-08-18 The United States Of America As Represented By The United States Department Of Energy Electrode-active material for electrochemical batteries and method of preparation
US4622709A (en) * 1984-04-16 1986-11-18 Shinichi Matsuda Cleaning apparatus for pipes
US4702860A (en) * 1984-06-15 1987-10-27 Nauchno-Issledovatelsky Institut Kabelnoi Promyshlennosti Po "Sredazkabel" Current-conducting composition
DE3562100D1 (en) * 1984-07-23 1988-05-11 Lonza Ag Method and apparatus for pickling work pieces for making tubes
CH670106A5 (en, 2012) * 1984-07-23 1989-05-12 Lonza Ag
CH665847A5 (de) * 1985-10-02 1988-06-15 Lonza Ag Verfahren zum suspendieren von festschmierstoffen.
US4795495A (en) * 1985-10-11 1989-01-03 Village Of Streamwood Sewer cleaning device
US4668534A (en) * 1986-01-21 1987-05-26 Ben E. Meyers Method and apparatus for applying fusion bonded powder coatings to the internal diameter of tubular goods
CH668717A5 (de) * 1986-07-03 1989-01-31 Lonza Ag Verfahren zum aufbringen eines fliessfaehigen stoffes auf die innenflaeche eines hohlkoerpers und einrichtung zur durchfuehrung des verfahrens.
US4819471A (en) * 1986-10-31 1989-04-11 Westinghouse Electric Corp. Pilger die for tubing production
US4862838A (en) * 1988-06-07 1989-09-05 Stanadyne Automotive Corp. Crankcase oil spray nozzle for piston cooling

Also Published As

Publication number Publication date
MX170721B (es) 1993-09-09
US5102468A (en) 1992-04-07
ES2031564T3 (es) 1992-12-16
JP2737168B2 (ja) 1998-04-08
CS648088A2 (en) 1990-08-14
YU178488A (sh) 1993-10-20
CH674164A5 (en, 2012) 1990-05-15
CN1020073C (zh) 1993-03-17
JPH01107917A (ja) 1989-04-25
CN1032422A (zh) 1989-04-19
EP0309945A3 (en) 1990-05-30
EP0309945A2 (de) 1989-04-05
CS274438B2 (en) 1991-04-11
CA1314793C (en) 1993-03-23
SU1620043A3 (ru) 1991-01-07
ATE76335T1 (de) 1992-06-15
DE3871309D1 (de) 1992-06-25

Similar Documents

Publication Publication Date Title
DE2427693C2 (de) Vorrichtung zum innigen Vermischen eines Gases mit einer Flüssigkeit
DE2135332C3 (de) Vorrichtung zum homogenen Zerstäuben eines Stromungsmittels in einem Treibmittel
DE3420318C2 (en, 2012)
EP0076472A1 (de) Vorrichtung zum gleichmässigen Verteilen eines Schüttgutstroms
DE3100001C2 (en, 2012)
DE2751968C3 (de) Injektorkopf zum Einleiten eines mit Schleifmittel beladenen Gasstromes in eine Pipeline
DE3527923C2 (en, 2012)
EP0250881B1 (de) Verfahren zum Aufbringen eines fliessfähigen Stoffes auf die Innenfläche eines Hohlkörpers und Einrichtung zur Durchführung des Verfahrens
EP1735579B1 (de) Verfahren zum reinigen der rohre eines wärmetauschers mit hilfe eines strahlmittels und dafür geeignete vorrichtung
DE2020055A1 (de) Verfahren und Vorrichtung zum UEberziehen von Gegenstaenden mit pulverfoermigen Stoffen
DE931557C (de) Vorrichtung zum Einbringen von in einem Sammelbehaelter enthaltenen gleichartigen Werkstuecken in einen Profilkanal
EP0309945B1 (de) Einrichtung zum Aufbringen eines Entzunderungsmittels auf die Innenfläche einer Luppe
EP0792694B1 (de) Verfahren und Einrichtung zur Steuerung des Austritts eines fluidisierten Feststoffes aus einem Behälter
DD220770A3 (de) Vorrichtung zum druckluftstrahlen
DE2925435A1 (de) Spruehkopf
DE1262234B (de) Drehstroemungswirbler zum Abscheiden fester oder fluessiger Teilchen aus Gasen
DE4312994C2 (de) Vorrichtung zur Verspritzung von Suspensionen, insbesondere Mörteln
DE3117715C2 (de) Pulverbeschichtungsvorrichtung
DE4041810C2 (de) Mehrdraht-Lichtbogen-Spritzpistole
DE2648218C3 (de) Verfahren zur Regelung der Waschleistung eines Venturirohres und Vorrichtungen zur Durchführung dieses Verfahrens
DE3042706C2 (de) Verfahren zur Ankopplung eines Prüflings bei der Ultraschall-Prüfung und Ultraschallprüfkopf
EP0724917A1 (de) Vorrichtung zum Reinigen der Innenwandung eines Weinfasses
DE2401626B2 (de) Vorrichtung zum Entzundern eines metallenen Drahtes
DE69105819T2 (de) Verfahren zur Entfernung von Russ durch Streuung von Stahlkugeln in einem Wärmetauscher.
DE2302464B2 (de) Naßwäscher

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE ES FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE ES FR GB IT LI SE

17P Request for examination filed

Effective date: 19901127

17Q First examination report despatched

Effective date: 19911011

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB IT LI SE

REF Corresponds to:

Ref document number: 76335

Country of ref document: AT

Date of ref document: 19920615

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3871309

Country of ref document: DE

Date of ref document: 19920625

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2031564

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19941229

Year of fee payment: 7

EAL Se: european patent in force in sweden

Ref document number: 88115722.6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950817

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19950912

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19950930

Ref country code: CH

Effective date: 19950930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960923

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960924

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960923

EUG Se: european patent has lapsed

Ref document number: 88115722.6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010921

Year of fee payment: 14

Ref country code: ES

Payment date: 20010921

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20010924

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011011

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020923

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020924

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030603

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031011

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050923