SU1347967A1 - Apparatus for wet cleaning of gases - Google Patents

Description

The invention relates to apparatus for contacting a gas or dust-gas flow with a liquid and can be used in the chemical industry, in metallurgy, in the non-ferrous metal industry for carrying out various heat and mass transfer processes, in particular for wet gas cleaning from mechanical impurities.

A device for wet gas cleaning is known, comprising a cyclone with a tangential inlet, an exhaust pipe installed along the axis of the device, a perforated cylindrical shell installed eccentrically to the device with the formation of a curvilinear channel Li.

The disadvantages of this device are increased capleunos, leading to a decrease in the cleaning efficiency of dusty gas streams by 1-1.5%.

The closest to the present invention is a device for wet gas cleaning, including a cyclone with a tangential inlet, an exhaust pipe, a shell in the form of two Archives spirals arranged in height, intersecting with each other and with an exhaust pipe, liquid supply pipes and sludge discharge 2

However, the known device is characterized by increased capleunos with purified gas and insufficient purification efficiency.

The aim of the invention is to improve the cleaning efficiency and reduce the kleunos.

The goal is achieved by the fact that a device for wet gas cleaning, containing a cyclone with a tangential inlet nozzle, exhaust pipe, shell in the form of two Archimedean spirals arranged in height, intersecting with each other and with the exhaust pipe, is equipped with an annular a partition with a swirler embedded in it, installed in the exhaust pipe in the intersection zone of the lower spiral of Archimedes with the exhaust pipe, while the exhaust pipe is made with perforations above and below the ring lane Egorovki.

FIG. 1 shows the proposed device, a general view; FIG. 2, section A-A in FIG. one; in fig. 3 is a section BB in FIG. 2

The device for wet gas cleaning includes a housing 1, a tangential inlet 2, an exhaust pipe 3, a shell in the form of two spirals 4 and 5 of Archimedes, nozzles 6 and 7 for supplying liquid and cutting sludge, an annular partition 8 with an integrated swirler 9 installed in the exhaust pipe 3 at the intersection of the lower spiral 4 with the exhaust pipe 3. On the surface of the exhaust pipe 3, perforations 10 are made below the annular partition and perforations 1 are above the annular partition. Perforations 12 are made on the surface of the shell of the upper spiral 5 of Archimedes with the help of curvilinear plates placed at a distance from each other and partially overlapping each other.

The device for wet cleaning works as follows.

The dusty gas flow enters through the tangential nozzle 2 into the device body 1, namely into the curvilinear twice narrowing and expanding channel formed by the housing 1 and the shell in the form of two spirals 4 and 5 of Archimedes, where it comes into contact with the irrigating liquid entering this channel through perforations 1.2. Next, the gas flow, which passed through two stages of cleaning in a curvilinear channel and in the cyclone body, enters the exhaust pipe 3, where it also contacts with a liquid, passes through a swirler 9, i.e. another third stage of purification passes, after which the purified gas is removed from the device.

The irrigating fluid is fed into the device through the nozzle 6 into the downstream Archimedes spiral, and then it passes through perforations 10 into the exhaust pipe below the annular partition 8. In the exhaust pipe, the liquid additionally flows through the swirler 9, under the action of centrifugal forces separated from the gas stream. Then the liquid through the perforations 11 enters the upstream spiral 5 of Archimedes, from which through the perforations 12 enters the curvilinear channel and flushes the source gas stream.

The proposed device makes it possible to increase the efficiency of gas cleaning due to the additional flushing of gases in the exhaust pipe, followed by the separation of liquid droplets containing gas in the exhaust gas, as a result of which the problem of kaplsunos is solved. At the same time, in connection with placing the annular partition with the swirler directly on the exhaust pipe, the achievement of this goal is ensured without increasing the size of the apparatus, la.au- the perforations on the surface of the exhaust pipe provides gas flushing below the annular partition.

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Compiled by O. Kal Kina Editor E. Kopcha Tehred M. Khodanich Proofreader A. Zimokpsi

Order 5139/5 Circulation 656 Subscription

VNPPI State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5

Production and printing company, Uzhgorod, st. Project, 4

L / e. J

Claims (1)

WET GAS CLEANING DEVICE, containing a cyclone with a tangential inlet pipe, a flare pipe, a shell in the form of two Archimedes spirals located at a height that intersect each other and with the exhaust pipe, liquid supply pipes and sludge outlet pipes, characterized in that, with the Purpose of increasing the efficiency of cleaning and reducing the droplet drop, the device is equipped with an annular partition with an integrated swirler installed in the exhaust pipe in the zone of intersection of the lower Archimedes spiral with the exhaust pipe, while the exhaust the pipe is made with perforation above and below the annular partition. Fig! OO with o