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EP0039839A1 - Verfahren und Vorrichtung zum Versprühen von dispersen Systemen - Google Patents

Verfahren und Vorrichtung zum Versprühen von dispersen Systemen Download PDF

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Publication number
EP0039839A1
EP0039839A1 EP81103244A EP81103244A EP0039839A1 EP 0039839 A1 EP0039839 A1 EP 0039839A1 EP 81103244 A EP81103244 A EP 81103244A EP 81103244 A EP81103244 A EP 81103244A EP 0039839 A1 EP0039839 A1 EP 0039839A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
disperse system
disperse
air
perforated nozzle
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.)
Ceased
Application number
EP81103244A
Other languages
German (de)
English (en)
French (fr)
Inventor
René Egli
Hans-Rudolf Staub
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
Publication of EP0039839A1 publication Critical patent/EP0039839A1/de
Ceased legal-status Critical Current

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Classifications

    • 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
    • B21B45/02—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 lubricating, cooling, or cleaning
    • B21B45/0239—Lubricating
    • B21B45/0245—Lubricating devices
    • B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/0475—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the peripheral gas flow towards the central liquid flow
    • 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
    • B21B45/02—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 lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • 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
    • B21B45/02—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 lubricating, cooling, or cleaning
    • B21B45/0239—Lubricating
    • B21B45/0242—Lubricants

Definitions

  • the invention relates to a method and a device for spraying disperse systems in finely divided form.
  • a device containing a spray head with a perforated nozzle, a arranged in the interior of the spray head, which can be pushed in front of the perforated nozzle opening and optionally a sieve insert arranged between an inlet for the disperse system and the perforated nozzle with a stripping device for the sieve insert.
  • a minimum hole nozzle diameter of 0.3 mm and a minimum working pressure of 20 bar must be maintained. This means that a certain throughput cannot be undercut. This also means that the dispersed systems are applied as relatively thick films when sprayed.
  • the sieve insert 6 expediently has a cylindrical shape which surrounds the side surfaces of the stamp.
  • the sieve insert 6 can be attached to the piston 5.
  • the stripping device 7 is expediently designed as a hollow cylinder which straddles the outer circumference of the sieve insert and is attached to the housing 1, or the stripping device can be designed in the form of a liner in the housing 1. Sealing elements can prevent media from penetrating.
  • any entrained solid particles are retained on the screen insert.
  • a compressed gas supply 8 which opens into the perforated nozzle.
  • the gaseous and essentially liquid medium mixes and emerges as a mist from the perforated nozzle.
  • Figure 2 shows a further embodiment of the device.
  • the piston 5 is designed as a tandem piston, on the one hand, due to the pressure of the disperse system 9 fed in and a partial flow of the compressed gas 10 on the other hand is moved in one direction and by spring force in the other direction.
  • the piston can also be moved away from the perforated nozzle by the pressure of the disperse system and counter to a spring force. If the pressure of the disperse system drops, the piston returns to the starting position by spring force.
  • the piston can be moved in one or both directions by partial flows of the compressed gas or pneumatically by a separate control. Another variation would be a hydraulic or hydraulic-mechanical control.
  • the piston 5 moves the attached first punch 4 in the opening direction, that is, the tip of the punch is withdrawn from the L ochdüsenö réelle and clears the way for the free disperse system. If the piston is moved in the opposite direction, the punch tip pushes back into the hole nozzle, presses out any impurities and closes the hole nozzle opening.
  • the screen insert 6 is also connected to the piston 5 and the screen surface is stripped and cleaned during the closing process. In the end position, the entire screen surface is covered by the liner 7 or the stripping device and closes the passage for the disperse system. When the piston is withdrawn, the disperse system passes through the sieve insert and any oversized particles and impurities are retained.
  • the device can also be operated without a sieve, thus falls well as its cleaning W IR kung away.
  • dispersions containing graphite as a dispersion are sprayed with larger proportions of polymers, such as alkylene polymers, dispersion auxiliaries and stabilizers, and a liquid, generally water, as the dispersion medium.
  • polymers such as alkylene polymers, dispersion auxiliaries and stabilizers
  • a liquid generally water
  • the minimum pressure for the disperse system can be reduced close to the ambient pressure, pressures from 2.5 bar to 150 bar are advantageous.
  • the air pressure must be slightly lower than the pressure in the disperse system to prevent kickback.
  • the disperse system is reflected in the finest distribution of droplets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Lubricants (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
EP81103244A 1980-05-13 1981-04-29 Verfahren und Vorrichtung zum Versprühen von dispersen Systemen Ceased EP0039839A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH372580A CH647061A5 (de) 1980-05-13 1980-05-13 Verfahren und vorrichtung zum verspruehen von dispersen systemen.
CH3725/80 1980-05-13

Publications (1)

Publication Number Publication Date
EP0039839A1 true EP0039839A1 (de) 1981-11-18

Family

ID=4262162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103244A Ceased EP0039839A1 (de) 1980-05-13 1981-04-29 Verfahren und Vorrichtung zum Versprühen von dispersen Systemen

Country Status (8)

Country Link
EP (1) EP0039839A1 (pt)
JP (1) JPS5753266A (pt)
AR (1) AR227669A1 (pt)
BR (1) BR8102914A (pt)
CH (1) CH647061A5 (pt)
ES (2) ES267250Y (pt)
MX (1) MX155527A (pt)
ZA (1) ZA812863B (pt)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0131120A1 (de) * 1983-07-06 1985-01-16 Lonza Ag Verfahren und Vorrichtung zum feinsten Versprühen von Suspensionen
DE3811261A1 (de) * 1988-04-02 1989-10-19 Thomae Gmbh Dr K Vorrichtungen zur gesteuerten freisetzung dosierter mengen von in gasen feinverteilten fluessigkeiten
US5205488A (en) * 1990-03-26 1993-04-27 Lonza Ltd. Process and device for spraying a liquid intermittently, especially a lubricant suspension to be sprayed under high pressure
EP0639408A1 (de) * 1993-08-17 1995-02-22 Dr. Stahl & Sohn GmbH & Co. KG Vernebelungsgerät

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104475589A (zh) * 2014-11-26 2015-04-01 镇江维纳特气门有限公司 一种冲床自动喷墨装置专用喷墨枪
CN113969427B (zh) * 2021-09-07 2022-09-06 华南理工大学 一种具有网状结构的芳纶微纳米纤维及其制备方法与应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB604560A (en) * 1945-11-27 1948-07-06 Atlas Diesel Ab Improvements in spray heads for liquid spraying appliances
FR1028824A (fr) * 1950-09-21 1953-05-28 Perfectionnements aux jets de pulvérisation
US3774844A (en) * 1972-03-23 1973-11-27 Walberg & Co A Electrostatic deposition coating system
DE2724931A1 (de) * 1976-06-21 1977-12-29 Lonza Ag Vorrichtung zum verspruehen von dispersen systemen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB604560A (en) * 1945-11-27 1948-07-06 Atlas Diesel Ab Improvements in spray heads for liquid spraying appliances
FR1028824A (fr) * 1950-09-21 1953-05-28 Perfectionnements aux jets de pulvérisation
US3774844A (en) * 1972-03-23 1973-11-27 Walberg & Co A Electrostatic deposition coating system
DE2724931A1 (de) * 1976-06-21 1977-12-29 Lonza Ag Vorrichtung zum verspruehen von dispersen systemen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0131120A1 (de) * 1983-07-06 1985-01-16 Lonza Ag Verfahren und Vorrichtung zum feinsten Versprühen von Suspensionen
DE3811261A1 (de) * 1988-04-02 1989-10-19 Thomae Gmbh Dr K Vorrichtungen zur gesteuerten freisetzung dosierter mengen von in gasen feinverteilten fluessigkeiten
US5205488A (en) * 1990-03-26 1993-04-27 Lonza Ltd. Process and device for spraying a liquid intermittently, especially a lubricant suspension to be sprayed under high pressure
EP0639408A1 (de) * 1993-08-17 1995-02-22 Dr. Stahl & Sohn GmbH & Co. KG Vernebelungsgerät

Also Published As

Publication number Publication date
JPS5753266A (en) 1982-03-30
MX155527A (es) 1988-03-24
AR227669A1 (es) 1982-11-30
ZA812863B (en) 1982-04-28
ES267250U (es) 1983-03-16
ES267250Y (es) 1983-10-16
CH647061A5 (de) 1984-12-28
ES502113A0 (es) 1982-11-01
ES8300510A1 (es) 1982-11-01
BR8102914A (pt) 1982-02-02

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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

Designated state(s): BE CH DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19811029

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19850810

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STAUB, HANS-RUDOLF

Inventor name: EGLI, RENE