DE2547824A1 - Vertical gas scrubber with partial mist pptn. - for gases entraining large quantities of dust e.g. in refuse incinerator - Google Patents

Abstract

The gas scrubber allows mist pptn. in the vertical, with pptn. of large droplets in the fall zone and pptn. of fine mist in the deflection zone. The former is pref. carried out by an apertured or sieve-like surface separator. Due to the combination of vertically mounted crude gas supply zones over a spin generator, major sepn. between water and gas in the fall zone can be carried out without much loss of pressure and the gas-liq. stream which is specifically lighter is deflected and passed to means for fine mist precipitation. The scrubber is operated with a ratio of 10 kg water to 1 kg gas, which allows considerable savings in loss of pressure in a partial droplet pptn. system.

Description

Description and explanation of patent and usage

sample auxiliary application "Vertical gas scrubber with partial liquid droplet separator Jung "It is known that smoke gas quantities 7-.B. Enriched with S02, H2S, fluorine, etc. are, in so-called washing towers, which are provided with washers and floor facilities are to build.

However, these ash tower-like gas scrubbers are not suitable for To purify gases, at the same time besides the gaseous impurities as well carry considerable amounts of dust with them, e.g. behind coal-fired power plants and F1ü1 Iburns are often the case.

To these mixed gases with dust and gaseous impurities are enriched to clean in a washing system that has low pressure loss works, it is proposed according to the invention to choose a construction that accordingly attached drawing.

The attached drawing shows: With l: the raw gas inlet in a round vertical washer, with 2: the raw gas scrubbing sections, din can also be designed like a venturi, with 3: swirl generator, which force the water sludge gas mixture into a swirling movement and thus the mixture Hei (4) in a coarse liquid droplet separator crown partially before the redirection Separate with little pressure loss.

The water and / or sludge droplets are slit and / or sieve-shaped Flschen (4) inevitably diverted and thus according to the peeling and gravity effect largely freed from the liquid load and diverted to the fine droplet separator system (6) supplied.

The separation system (6) can consist of known water agglomeration systems such as mist separators or the like.

At (7) the purified gas of water droplets and water mist occurs freed, fed to the exhaust chimney or fan.

The essential feature of the invention is to be seen in the fact that through the combination of vertically attached raw gas inlet sections (2) via a Swirl generation (3) the main separation between water and gas in the falling area is carried out without any significant pressure loss and which is specifically essential Lighter gas-liquid flow deflected and fed to a fine droplet separation will.

It is quite common with a ratio of around 10 kg of water and one kg of gas to operate a scrubber, according to the inventive feature due to the partial droplet separator system arrangement, there is a considerable loss of pressure is saved.

Patent claims:

Claims (1)

Claims: Claim:, vertical washer, preferably for gas mixtures, which are polluted with dust and gaseous pollutants, characterized by that the liquid separation is arranged in the vertical so that the coarse droplet separation is carried out in the falling area at (4) and the fine mist separation in the deflection area (f) is provided claim 2: According to claim 1, characterized in that the liquid large droplet separator is designed as a gap and / or sieve surface separating element.