EP0481143A1 - Vorrichtung zur Lärmminderung beim Ausblasen verzinkter Rohre - Google Patents

Vorrichtung zur Lärmminderung beim Ausblasen verzinkter Rohre Download PDF

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Publication number
EP0481143A1
EP0481143A1 EP90311481A EP90311481A EP0481143A1 EP 0481143 A1 EP0481143 A1 EP 0481143A1 EP 90311481 A EP90311481 A EP 90311481A EP 90311481 A EP90311481 A EP 90311481A EP 0481143 A1 EP0481143 A1 EP 0481143A1
Authority
EP
European Patent Office
Prior art keywords
steam
steel pipe
zinc
cone
plating steel
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.)
Withdrawn
Application number
EP90311481A
Other languages
English (en)
French (fr)
Inventor
Chun-Yen Chu
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.)
YISHIN ENGINEERING Co Ltd
Original Assignee
YISHIN ENGINEERING Co Ltd
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 YISHIN ENGINEERING Co Ltd filed Critical YISHIN ENGINEERING Co Ltd
Priority to EP90311481A priority Critical patent/EP0481143A1/de
Publication of EP0481143A1 publication Critical patent/EP0481143A1/de
Withdrawn legal-status Critical Current

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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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • C23C2/18—Removing excess of molten coatings from elongated material
    • C23C2/185—Tubes; Wires

Definitions

  • the present invention relate to a method of abatement of noise generated upon conducting a Steam blowing process. Particularly to a method for abatement of noise caused by Steam-blowing process upon making a Zinc-plating steel pipe.
  • a cone-shaped steam-blowing outlet is furnished to closely connect with one end of a zinc-plating steel pipe, while a cone-shaped steam inlet operated with an extension pipe is closely connected to the other end of a zinc-plating steel pipe: while a cone-shaped steam inlet operated with an extension pipe is closely connected to the other end of a zinc-plating steel pipe; therefore, the steam with residual zinc powder will be conveyed into a separator with whirling wind therein so as to have the zinc powder separated from the steam, and exhausted from the bottom of the separator; the steam is to be exhausted from the top of the separator to enter in the receiving tank under the condenser.
  • the upper end of the condenser is connected with a vacuum pump, whereby the pressure in the pipe system can be lowered about 300 torr so as to remove the backing pressure in the pipe system, and to reduce the eddy effect of steam in the pipe system in order to increase the blowing efficiency.
  • a vacuum pump By means of the aforesaid method, the noise caused by the steam blowing can be minimized.
  • the embodiment according to the present invention comprises a cone-shaped steam-blowing outlet 2 being closely connected with zinc-plated steel pipe 3 to be treated, a cone-shaped steam inlet 4 being closely connected with the tail end of the zinc-plated steel pipe 3; the cone-shaped outlet 2 and inlet 4 are so designed that they can adapt to various diameters of steel pipes 3; an extension pipe 5 is connected with the cone-shaped steam inlet 4; the length of the extension pipe 5 can be adjusted with a pneumatic cylinder 6 so as to closely fit a zinc-plated steel pipe 3 having a given length.
  • a boiler (not shown)provides a steam having a pressure of 5-7kg/cm to pass through a steam pipe 1 and a cone-shaped steam-blowing outlet 2 and to pass, at a high speed, through the zinc-plated steel pipe 3 so as to remove the zinc powder left therein; then, the steam and zinc powder will pass through the cone-shaped steam inlet 4 and the extension pipe 5 and enter a separator 7, whereby the zinc powder is separated and exbausted together with water out of the lower end 8 of the separator, while the steam is exhausted out of the upper end 9 of the separator to enter in a condenser 10; then, the steam will convert into water, which flows, out of a lower outlet 13, into a receiving tank 15.
  • the upper outlet 12 of the condenser 10 is connected with a vacuum pump 14, whereby the air pressure in the pipe system can be maintained at a pressure lower (about 300 torr) than one atmosphere pressure so as to increase efficiency of removing the residual zinc powder in the steel pipe, and to reduce the eddy effect of steam in the pipe system. Since the pressure inside the pipe system is lower at one atmosphere pressure than the ambient atmosphere, the water in the receiving tank 15 has to be exbausted with a water pump 17. In order to maintain a given amount of water in the receiving tank 15 to prevent air from entering the tank 15, a water level controller 16 is installed in the receiving tank 15 for maintaining a given low level.
  • a separator 7 is used for removing the residual zinc powder so as to prevent the zinc powder from blocking the pipe system, and for converting the high speed steam into water, and for reducing the steam-blowing noise below-65 db from a rogue 95-130 db. Under that noise level, the public would not feel any noise.
  • the aforesaid description of the resent invention is deemed much economic and effective method (in comparison with a noise-isolating wall).
  • the present invention can solve the dispute between the factory and the residents in the vicinity of the factory,. By means of using the vacuum pump, the efficiency of removing the residual zinc powder can be increased about 15%, and therefore the noise will be reduced considerably.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP90311481A 1990-10-19 1990-10-19 Vorrichtung zur Lärmminderung beim Ausblasen verzinkter Rohre Withdrawn EP0481143A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP90311481A EP0481143A1 (de) 1990-10-19 1990-10-19 Vorrichtung zur Lärmminderung beim Ausblasen verzinkter Rohre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90311481A EP0481143A1 (de) 1990-10-19 1990-10-19 Vorrichtung zur Lärmminderung beim Ausblasen verzinkter Rohre

Publications (1)

Publication Number Publication Date
EP0481143A1 true EP0481143A1 (de) 1992-04-22

Family

ID=8205581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90311481A Withdrawn EP0481143A1 (de) 1990-10-19 1990-10-19 Vorrichtung zur Lärmminderung beim Ausblasen verzinkter Rohre

Country Status (1)

Country Link
EP (1) EP0481143A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5639901A (en) * 1994-02-21 1997-06-17 Cerdec Aktiengesellschaft Keramische Farben Organosulfur gold compounds, a process for their production and their use

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889803A (en) * 1956-05-29 1959-06-09 William S Pearson Galvanizing means
US3205588A (en) * 1960-10-21 1965-09-14 Leybold Anlagen Holding A G Drying process and apparatus therefor for removing solids from liquid mixtures
FR2285471A1 (fr) * 1974-09-17 1976-04-16 Mannesmann Roehren Werke Ag Procede et dispositif pour diminuer le bruit dans les operations de nettoyage par soufflage de vapeur des tubes galvanises
DE3027387B1 (de) * 1980-07-17 1981-02-12 Mannesmann Ag Vorrichtung zur Laermminderung beim Ausblasen verzinkter Rohre

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889803A (en) * 1956-05-29 1959-06-09 William S Pearson Galvanizing means
US3205588A (en) * 1960-10-21 1965-09-14 Leybold Anlagen Holding A G Drying process and apparatus therefor for removing solids from liquid mixtures
FR2285471A1 (fr) * 1974-09-17 1976-04-16 Mannesmann Roehren Werke Ag Procede et dispositif pour diminuer le bruit dans les operations de nettoyage par soufflage de vapeur des tubes galvanises
DE3027387B1 (de) * 1980-07-17 1981-02-12 Mannesmann Ag Vorrichtung zur Laermminderung beim Ausblasen verzinkter Rohre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5639901A (en) * 1994-02-21 1997-06-17 Cerdec Aktiengesellschaft Keramische Farben Organosulfur gold compounds, a process for their production and their use
US5721303A (en) * 1994-02-21 1998-02-24 Cerdec Aktiengesellschaft Keramische Farben Organosulfur gold compounds, a process for their production and their use

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