IT1145691B - Removing contaminants from drying plant exhaust gas - Google Patents
Removing contaminants from drying plant exhaust gasInfo
- 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
Links
- 239000000356 contaminant Substances 0.000 title abstract 3
- 238000001035 drying Methods 0.000 title abstract 3
- 239000007789 gas Substances 0.000 abstract 5
- 238000000034 method Methods 0.000 abstract 3
- 241000017363 Schefflera morototoni Species 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 241000196324 Embryophyta Species 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 150000003505 terpenes Chemical class 0.000 abstract 1
- 235000007586 terpenes Nutrition 0.000 abstract 1
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)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Drying Of Solid Materials (AREA)
- Treating Waste Gases (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.
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)
| 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 |
-
1980
- 1980-03-14 DE DE19803009938 patent/DE3009938A1/en not_active Ceased
- 1980-06-30 IT IT49112/80A patent/IT1145691B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT8049112A0 (en) | 1980-06-30 |
| DE3009938A1 (en) | 1981-09-24 |
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