CS252185B1 - Equipment for aerosols separation and absorption - Google Patents

Abstract

The device is designed for aerosol separation, for example, oily, sucked from oil tempering baths or mechanical machines machining parts that are for cooling uses oil or emulsion. Other utilization may be for the absorption of gaseous impurities such as nitrogen oxides and the like. The device is equipped to achieve high efficiency two separation steps in several appropriate alternatives. For the first alternative separator is the first stage used for separating coarse or solid aerosols in the so-called impact centrifugal insert, in the second stage, purification is carried out air mass on filter element with fine filling fibers. In an alternate separator assembly can be used instead of a centrifugal impact pad use a gyratory separator or to absorb gaseous impurities of the Venturi tube. To maintain an almost constant efficiency of the separator is a siphon centrifugal insert or a lamella of a Venturi tube movable with the possibility of regulating the cross-section of these elements.

Description

BACKGROUND OF THE INVENTION The present invention relates to an apparatus for separating aerosols from air and for the absorption of gaseous impurities, in which a two-stage separation is used.

Separation devices or filters are known for separating liquid aerosols, such as oil or emulsions, which are arranged in cylindrical annulus - so-called candles or plates. Fine fibers of artificial or natural materials are used as fillers for these devices.

It is usually required that the air separator be almost completely cleaned of liquid aerosols, even when the air is to a small extent contaminated with solids, such as when exhausting air from grinding machines and similar devices. It is therefore necessary to pre-purge the air in the first separation stage so that the second stage is not burdened with high concentrations and is able to separate the remaining aerosols with high efficiency.

This requirement is made possible by a device for separating aerosols and absorbing, possibly with a low solids content, mist and fumes from gases, with a microfiber filling of artificial or natural materials arranged into filter cartridges of the plate or cylindrical shape according to the invention, 2. The method according to claim 1, wherein the coarse fraction separator comprising a centrifugal impact pad or at least one rectangular or circular venturi or at least one vortex separator is included as the first separating stage. In order to maintain an almost constant efficiency in the device, it is advisable to equip the space of the centrifugal impactor or venturi nozzle with at least one movable lamella to regulate their cross-section.

The device according to the invention extends the operability and reliability of the operation by separating all solid and coarse liquid fractions in a first separation stage which is small in size and is easily removable for replacement and eventual recovery thereof. This also increases overall efficiency. The filter cartridges of the first separation stage are filled with available materials and are not production intensive.

1, 2, 3, and 4 show schematically alternatives of the device according to the invention, according to Fig. 1 with a centrifugal impact pad, another alternative of which is shown in Fig. 2. 3 and the venturi apparatus is shown in FIG. 4.

According to FIGS. 1 and 2, the contaminated flue gas is fed through the inlet throat 1 into the apparatus and is introduced via a centrifugal impact pad 2 into the separator body 3, in which the filter inserts 4 are housed. correct adjustment of the cross-sectional area of the centrifugal impact pad 2 when the air mass is changed, the lamella 6 can be movable and adjustable. The filter elements 4 are inserted into the separator body 3 after removal of the cover 7. The separated liquid is drained from the separator through the liquid outlet 8.

Fig. 3 shows an assembly using a vortex separator 9 instead of a centrifugal liner 2; and Fig. 4 shows an assembly of a separator using a Venturi tube 10 as the first separation stage into which the absorbent is introduced. The throat of the Venturi tube is equipped with a lamella 6 which is movable, with the possibility of regulating the throat cross section.

The filter elements 4 and the venturi 10 may have a rectangular or circular cross-section. One or more filter elements 4 may also be housed in the separator body 3.

The device according to the invention can be used for all cases of separation of oil aerosols, whether aspirated from oil tempering baths, as well as from machines for mechanical machining of parts, where solids are also contained in the exhausted air. The device can also be used to separate solids of low concentration alone for those cases where almost absolute air purification is required.

Claims (3)

1. Apparatus for the separation of aerosols and absorption, possibly having a low solids content, mist and fumes of gases, with a microfiber filling of artificial or natural materials arranged in plate or cylindrical filter cartridges, characterized in that the filter cartridges are filled with The microfibers form a second separating stage, the coarse fraction separator being included as the first separating stage BACKGROUND OF THE INVENTION comprising a centrifugal impact pad (2) or at least one rectangular or circular venturi (10) or at least one vortex separator (9). Device according to claim 1, characterized in that at least one movable lamella (6) is inserted in the space of the centrifugal impactor (2) or the neck of the venturi (10) to regulate their cross-section. 3 Drawing guides