IT1145691B - Removing contaminants from drying plant exhaust gas - Google Patents

Removing contaminants from drying plant exhaust gas

Info

Publication number
IT1145691B
IT1145691B IT49112/80A IT4911280A IT1145691B IT 1145691 B IT1145691 B IT 1145691B IT 49112/80 A IT49112/80 A IT 49112/80A IT 4911280 A IT4911280 A IT 4911280A IT 1145691 B IT1145691 B IT 1145691B
Authority
IT
Italy
Prior art keywords
exhaust gas
revaporisation
matchwood
drying plant
contaminants
Prior art date
Application number
IT49112/80A
Other languages
Italian (it)
Other versions
IT8049112A0 (en
Inventor
Gunter Waldmann
Franz Plesch
Original Assignee
Gifa Planungsges Ind Forsch
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
Priority claimed from DE19792926663 external-priority patent/DE2926663A1/en
Application filed by Gifa Planungsges Ind Forsch filed Critical Gifa Planungsges Ind Forsch
Publication of IT8049112A0 publication Critical patent/IT8049112A0/en
Application granted granted Critical
Publication of IT1145691B publication Critical patent/IT1145691B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005—Treatment of dryer exhaust gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0033—Other features
    • B01D5/0036—Multiple-effect condensation; Fractional condensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
    • B01D5/0096—Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Treating Waste Gases (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

Combustible and depositable contaminants are removed from the exhaust gases from drying plant, e.g. for matchwood, by cooling the gases until the volatile materials condense and bind any entrained dust. The deposits are periodically revaporised and collected at a separate location for disposal, e.g. are deposited in filters which can be burned and used as fuel. Revaporisation may be by hot gas. The exhaust gas can be split into sepd. streams for the initial cooling, which may be by heat exchange with fresh air. The revaporisation can be initiated at a specific pressure difference between exhaust gases with and without the contaminating material. The process is suitable for matchwood mfr., and processes such as veneer drying and paint treatment which produce similar contaminants (terpenes, resins). Atmospheric pollution is reduced, and the risks and expense involved in previous burning-off methods are avoided.
IT49112/80A 1979-07-02 1980-06-30 Removing contaminants from drying plant exhaust gas IT1145691B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792926663 DE2926663A1 (en) 1979-07-02 1979-07-02 METHOD AND DEVICE FOR SEPARATING POLLUTANTS FROM EXHAUST GASES, ESPECIALLY WITH WOOD SHAVING DRYING
DE19803009938 DE3009938A1 (en) 1979-07-02 1980-03-14 Removing contaminants from drying plant exhaust gas - where reheating removes organic deposits from heat exchanger

Publications (2)

Publication Number Publication Date
IT8049112A0 IT8049112A0 (en) 1980-06-30
IT1145691B true IT1145691B (en) 1986-11-05

Family

ID=25779790

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49112/80A IT1145691B (en) 1979-07-02 1980-06-30 Removing contaminants from drying plant exhaust gas

Country Status (2)

Country Link
DE (1) DE3009938A1 (en)
IT (1) IT1145691B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3222700C1 (en) * 1982-06-16 1983-11-17 Otmar Dipl.-Ing. 8000 München Schäfer Plant with a dryer for organic substances
DE3734388A1 (en) * 1987-10-10 1989-04-20 Sueddeutsche Kuehler Behr METHOD AND DEVICE FOR SEPARATING CONDENSIBLE POLLUTANTS AND SOLID PARTICLES IN PROCESS AIR

Also Published As

Publication number Publication date
DE3009938A1 (en) 1981-09-24
IT8049112A0 (en) 1980-06-30

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