SU1606161A1 - Apparatus for cleaning gases - Google Patents

Abstract

The invention relates to instrumentation for the process of sorption gas purification and can be used in the chemical and related industries. The purpose of the invention is to stabilize the operation of the adsorber under variable gas loads. The device comprises a housing with nozzles 2, 3, a perforated partition 6, hollow elements in the form of twisted springs 4 with a blind upper free end, mounted along concentric circumferences, cavities 13 between the springs, bounded by walls. The contaminated gas passes into the cavity of the springs 4, partially stretches them and swirls out into the bulk sorbent 7, where it spirals upwards, then turns 180 ° and passes through the sorbent cavities 13 between the walls and the lower grid 8, after which the cleaned out discharge connection 3. 2 Il.

Description

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The invention relates to instrumentation of the process of sorption gas purification and can be used in the chemical and other industries.

The purpose of the invention is to stabilize the operation of the adsorber under variable gas loads.

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

The device includes a housing 1 with nozzles 2 and 3 for entering the contaminated and outgoing purified gases, vertical hollow elements in the form of twisted cylindrical springs 4 with slit-like openings 5 between the turns, a perforated partition 6 and a bulk granulated sorbent 7.

The springs 4 are fixed with their bottom end on the grill 8, and their upper end is unsecured and provided with a plug 9. The springs 4 are arranged in concentric circles and mounted above the branch pipes 10 with conical sockets 11. The branch pipes 10 are connected to the collector 12, and the latter is connected to the branch pipe 2 Between the springs 4 there are concentric cavities 13 with sorbent 7, bounded by walls 14 with a height not less than the thickness of the sorbent layer and partition 6. In the lower part of the case I there is a branch pipe 15 to remove the dust-containing sludge, and in the upper part of the case there is a branch pipe to 16 for feeding the sorbent.

The device works as follows,.

The contaminated gas flow is fed through the manifold 12 through the nozzles 10 into the internal cavity of the springs 4, partially stretching the latter and seizing the particles of sorbent 7 under the springs, whirling under the action of the coils of the springs and out through their slit-shaped holes 5 together with the trapped particles sorbent. After exiting the bore holes 5, the flow is evenly distributed in the solid phase and spirals up around each spring with simultaneous intensive mass exchange with the solid phase suspended in the state under the action of the gas flow. Income to the upper part of the walls 14, the gas is rotated by 180 ° and enters the cavity 13 with a fixed bed of sorbent 7, where it is additionally cleaned, passes through the perforation of the partition 6.

Dust-containing sludge, the passage through the partition 6, collects in the lower part of the housing 1 and is discharged through the nozzle 15. The cleaned gas through the nozzle 3, which can be equipped with a filtering wall - a partition, for example, from polypropylene felt, is emitted into the atmosphere.

When the gas flow rate changes, for example, as it increases, the pressure on the plug 9 increases, as a result of which the springs 4 expand as the slit-like gaps 5 between the turns increase. At the same time, the gas release rate from the slots remains unchanged due to an increase in the area of the output slit-like openings, which ensures optimal conditions for the contact of the phases. By reducing the gas flow rate, the springs 4 are partially compressed with decreasing slit-like openings 5 between the turns. At the same time, the rate at which gas escapes from the holes remains constant. In this way, the optimum gas flow rate from the slotted opening is automatically maintained with changes in gas flow rate.

The elimination of a portion of the uncleaned gas through the installation of walls between the springs, which allows the gas to be treated in the sorbent, both in suspended sorbent mode and during

gas flow through a fixed sorbent. At the same time, the installation of springs with the free upper end closed off allows the gas to be cleaned at the optimum constant speed of its release from the openings between the turns of the springs when the flow rate changes.

Claims (1)

Invention Formula A gas cleaning device, comprising a housing with inlet and outlet branch pipes, in which vertical hollow elements are arranged placed in concentric circles under which a perforated partition is installed, characterized in that, in order to stabilize the operation of the adsorber with variable gas loads, hollow elements are provided with springs with blind upper ends, and concentric cavities between the elements are provided with annular partitions in which the sorbent is placed. one FIG. g