BE448448A - - Google Patents
Info
- Publication number
- BE448448A BE448448A BE448448DA BE448448A BE 448448 A BE448448 A BE 448448A BE 448448D A BE448448D A BE 448448DA BE 448448 A BE448448 A BE 448448A
- Authority
- BE
- Belgium
- Prior art keywords
- channels
- acid
- tank
- starting
- walls
- Prior art date
Links
- 239000002253 acid Substances 0.000 claims description 22
- 238000005554 pickling Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 150000007513 acids Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
- F24F8/133—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering by direct contact with liquid, e.g. with sprayed liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/007—Fume suction nozzles arranged on a closed or semi-closed surface, e.g. on a circular, ring-shaped or rectangular surface adjacent the area where fumes are produced
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
DISPOSITIF POUR L'EVACUATION DE VAPEURS D'ACIDE
DANS LES INSTALLATIONS DE DECAPAGE.
Il est connu de recueillir au moyen de hottes disposées au-dessus des réservoirs les vapeurs d'acide s'élevant des réservoirs à acide et nuisibles à la santé, s'échappant dans le local de travail, et de les évacuer de ces hottes. Il est connu en outre, dans le cas de réservoirs à acide qui sont placés dans une auge remplie d'eau, d'entraîner les vapeurs d'acide par l'eau en écoulement et de les faire partir dans des canaux.
En cas de grands réservoirs, les hottes gênent la mise en place de grandes pièces à traiter. Les auges à eau sont <EMI ID=1.1>
part des vapeurs d'acide dans les parois du réservoir des canaux de départ qui possèdent d'une part des orifices d'embouchure vers l'intérieur du réservoir et sont raccordés d'autre part à un dispositif de départ.
De grands réservoirs à acide sont faits d'habitude en maçonnerie ou en béton, avec des parois épaisses qui sont protégées de l'attaque des acides par un revêtement résistant à ces attaques, consistant principalement en des matières céramiques, par exemple des plaques résistantes aux acides. Dans de semblables parois, les canaux de départ suivant la présente invention peuvent être disposés facilement sans que la force portante des parois soit affaiblie ou eue leur
<EMI ID=2.1>
étroits mais aussi larges que possible. Les ouvertures d'enbouchure sont placées au-dessus du niveau de l'acide. Les
<EMI ID=3.1>
vers le bas. Ils sont réunis à la partie inférieure dans un canal collecteur qui est raccordé à une cheminée ou à un extracteur. L'effet d'aspiration peut être réglé par renforcement ou affaiblissement du tirage.
Les différents canaux peuvent posséder des sections d'embouchure et des sections de canaux de dimensions différentes suivant la gradation de l'effet d'aspiration par suite de la distance par rapport au dispositif produisant le tirage d'aspiration. Une gradation peut également être produite par un recouvrement complet ou partiel de la section au moyen de registres, de bouchons, etc. On peut également disposer un plus grand nombre Ce. canaux de départ dans la paroi du réservoir plus éloignée du dispositif d'aspiration ou dans une partie d'une paroi que dans les autres parois. Au lieu d'une rangée de canaux, on peut également employer
<EMI ID=4.1> <EMI ID=5.1>
part. Las parois doubles formant la cavité sont alors appuyées l'une par rapport à l'autre par des pierres d'appui disposées avec une répartition appropriée.
Les parois des canaux sont faites en des matières capables de résister aux acides ou bien la maçonnerie servant à les forcer est protégée par un revêtement ou un recouvrement de l'attaque des acides. Les canaux ne doivent pas être disposés dans toutes les parois. En cas de réservoirs étroits, il suffit par exemple de disposer des canaux sur un long côté.
Le dispositif suivant la présente invention évite tous les ennuis dans le local de travail, évacue les vapeurs d'acide à l'endroit où elles prennent naissance et permet un
<EMI ID=6.1>
piration des vapeurs et de l'air entrainé vers le bas, il arrive toujours de l'air frais du haut et il règne à la hauteur des têtes des personnes travaillant au réservoir toujours de l'air exempt de vapeurs d'acide.
Le dispositif suivant la présente invention peut s'employer également pour des réservoirs à acide servant à d'autres destinations, partout où il faut évacuer des gaz ou des vapeurs s'élevant de réservoirs.
Le dessin représente un exemple de réalisation du dispositif suivant l'invention.
La figure 1 est une coupe verticale. La figure 2 montre à plus petite échelle une coupe longitudinale dans un réservoir de décapage. La figure 3 montre également à l'échelle plus petite une vue de ce réservoir.
Le réservoir de décapage est fait de parois en béton 1, épaisses, formant des éléments de support, qui sont proté-
DEVICE FOR THE EVACUATION OF ACID VAPORS
IN PICKLING PLANTS.
It is known practice to collect, by means of hoods arranged above the tanks, the acid vapors rising from the acid tanks and harmful to health, escaping into the working room, and to evacuate them from these hoods. It is further known, in the case of acid reservoirs which are placed in a trough filled with water, to entrain the acid vapors by the flowing water and to cause them to leave in channels.
In case of large tanks, the hoods interfere with the placement of large parts to be treated. The water troughs are <EMI ID = 1.1>
from the acid vapors in the walls of the reservoir, the starting channels which have, on the one hand, mouth openings towards the interior of the reservoir and are connected, on the other hand, to a starting device.
Large acid tanks are usually made of masonry or concrete, with thick walls which are protected from attack by acids by a coating resistant to these attacks, consisting mainly of ceramic materials, for example acid resistant plates. acids. In such walls, the starting channels according to the present invention can be easily arranged without the load-bearing force of the walls being weakened or having their effect.
<EMI ID = 2.1>
narrow but as wide as possible. Mouth openings are placed above the acid level. The
<EMI ID = 3.1>
down. They are joined together at the bottom in a collecting duct which is connected to a chimney or an extractor. The suction effect can be regulated by strengthening or weakening the draft.
The different channels may have mouth sections and channel sections of different dimensions depending on the gradation of the suction effect as a result of the distance from the device producing the suction draft. A gradation can also be produced by a complete or partial covering of the section by means of registers, plugs, etc. It is also possible to have a larger number Ce. starting channels in the wall of the tank further away from the suction device or in part of a wall than in the other walls. Instead of a row of channels, one can also use
<EMI ID = 4.1> <EMI ID = 5.1>
go. The double walls forming the cavity are then supported with respect to each other by bearing stones arranged with an appropriate distribution.
The walls of the channels are made of materials capable of resisting acids or the masonry used to force them is protected by a coating or a covering from acid attack. Channels do not have to be placed in all walls. In the case of narrow tanks, it suffices, for example, to have the channels on one long side.
The device according to the present invention avoids all troubles in the work room, evacuates the acid vapors at the place where they originate and allows a
<EMI ID = 6.1>
piracy of the vapors and the air drawn downwards, there always arrives fresh air from the top and there reigns at the height of the heads of the persons working in the tank always air free of acid vapors.
The device according to the present invention can also be used for acid tanks serving other destinations, wherever it is necessary to evacuate gases or vapors rising from the tanks.
The drawing represents an exemplary embodiment of the device according to the invention.
Figure 1 is a vertical section. Figure 2 shows on a smaller scale a longitudinal section through a pickling tank. Figure 3 also shows a view of this tank on a smaller scale.
The pickling tank is made of concrete walls 1, thick, forming supporting elements, which are protected.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED87381D DE745482C (en) | 1942-03-27 | 1942-03-27 | Device for discharging acid fumes in pickling plants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE448448A true BE448448A (en) | 1943-01-30 |
Family
ID=7064435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE448448D BE448448A (en) | 1942-03-27 | 1942-12-21 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE448448A (en) |
| DE (1) | DE745482C (en) |
| FR (1) | FR890320A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4071338A (en) * | 1976-01-27 | 1978-01-31 | Physical Systems, Inc. | Air exhausted mixing bowl |
| FR2776272B1 (en) * | 1998-03-20 | 2000-06-16 | Vincent Jean Rene Lebourgeois | VENTILATED TANK WITH PERIPHERAL ASPIRATION |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE495775C (en) * | 1930-04-11 | Chrom Ind Max Wommer | Tub for electroplating baths, especially chrome baths |
-
1942
- 1942-03-27 DE DED87381D patent/DE745482C/en not_active Expired
- 1942-12-21 BE BE448448D patent/BE448448A/fr unknown
-
1943
- 1943-01-22 FR FR890320D patent/FR890320A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR890320A (en) | 1944-02-04 |
| DE745482C (en) | 1944-05-05 |
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