RU190593U1 - Battery cyclone with cyclone elements "cyclone filter" - Google Patents

Abstract

The utility model relates to a technique intended for the dry cleaning of gases from dust, and can be used in the construction, food, chemical and other industries, as well as in the cleaning of ventilation emissions. The battery cyclone includes a housing, gas distribution, gas collection and dust collection chambers, inlet and outlet nozzles, cyclone elements with semi-woven curlers and with filter fabric inserts and exhaust pipes. Moreover, the filtering element of the Dacron cloth is spirally located inside the cyclone. Setting the spiral-shaped insert into the cyclone, making it multi-turn with the same increasing or decreasing spiral pitch as its diameter decreases will increase the gas flow rate, resulting in an inertial force that rejects dispersed particles on the wall of the spiral insert, which will improve the quality of gas cleaning. The proposed cyclone battery cyclone with cyclone-filter elements allows to improve the quality of air purification, combines two stages of gas purification (gas purification and filtration), and thereby save production space. 1 of FIG.

Description

The utility model relates to a technique intended for the dry cleaning of gases from dust, and can be used in the construction, food, chemical and other industries, as well as in the cleaning of ventilation emissions.

Known battery cyclone with semi-supply gas flow to the cyclone elements of the CB 231U (see, MI Birger, A.Yu. Waldberg, BI Myagkov, and others; Under the editorship of A.A. Rusanov. - 2nd ed., Pererabat. And extra - Moscow: Energoatomizdat, 1983, p. 69).

The disadvantage is the low degree of purification of gas emissions from dust due to the possibility of vortexing and removal of its fine fractions from the purified gas stream leaving the cyclone.

A filter cyclone with a conical insert is known to increase the efficiency of cleaning dusty gases from dust (see, Patent for a utility model 164866 Russian Federation, IPC В04С 9/00 (2006.01), В04С 5/107 (2006.01). Filter-cyclone with a conical insert (Romanyuk E.V., Usov A.V., Kargashilov D.V., Kalach A.V., Shutkin A.N.; applicant and patent holder (FSBEI HE Voronezh Institute of State Fire Service of Emercom of Russia); application 2016103205/05 of 01.02 .2016; published 09/20/2016; Bull. 26), consisting of a cylindrical body with a tangentially angled inlet to the horizontal inlet pipe and spaced In the center of the casing there is a coaxially cylindrical outlet nozzle, a conical insert installed inside the casing and provided with slotted catching holes made at an angle to the cone forming, new is that a filter element is installed on the exhaust pipe - a cylindrical bag filter consisting of reinforcing metal base and fabric filter material.

The disadvantage is the low degree of purification of gas emissions from dust due to the possibility of vortexing and removal of its fine fractions from the purified gas stream leaving the cyclone.

This technical solution is chosen by the authors as a prototype.

The disadvantages of the known battery cyclones is that from the drift of the flow area decreases the degree of cleaning and increases the energy consumption to overcome the hydraulic resistance of the battery cyclone.

The technical result is to improve the quality of gas cleaning due to the installation of additional filters in cyclone elements and increasing the gas flow rate and inertial forces emitting solid particles from the gas flow, as well as reducing secondary dust emission.

Nowadays, for the purification of gases from mechanical means, due to the large throughput, battery cyclones (multicyclones) are widely used. Battery cyclones, having a large bandwidth, can effectively precipitate suspended particles of medium (10 microns) and large size, which is why they are used for the primary treatment of emissions. At the fine cleaning stage, filter devices are installed behind them. In the present work, the possibility of creating an energy-efficient device that combines both stages of cleaning is considered.

A battery cyclone has been proposed that includes a housing with inlet, outlet and dust chambers and cyclone elements with semi-eddy swirlers, which consist of: a cylindrical body with an inlet pipe tangentially angled to the horizontal and located in the center of the body coaxially with a cylindrical outlet pipe, a filter element made of polyester fabric spirally located inside the cyclone, rigidly fixed on top to the lid or mounted to the lid with a gap and made multi-turn. Setting the spiral-shaped insert into the cyclone, making it multi-turn with the same, increasing or decreasing spiral pitch as its diameter decreases, making it conical will increase the gas flow rate, resulting in an inertial force that rejects the dispersed particles on the wall of the spiral-shaped insert, which will increase gas cleaning quality. Cyclone elements themselves are mounted vertically in a horizontal tube plate separating the entrance and dust chambers of the housing.

The utility model is illustrated with a drawing.

The battery cyclone includes a housing 1, a gas distribution 2, a gas-collecting 3 and a dust-collecting 4 chambers, an inlet 5 and an outlet 6 nozzles, cyclone elements 7 with semi-curved curlers 8 and with filter fabric inserts 9 and exhaust pipes 10.

Battery cyclone works as follows.

The dusty air through the inlet 5 and the gas distribution chamber 2 enters the cyclone element, in which a rotational motion is communicated to it by means of a semi-dry twisting device 8, and the dusty gas entering the filter cyclone moves in a spiral towards the lower end of the cyclone. Under the action of the resulting centrifugal force, the dust particles in the gas stream move to the wall of the dust collector housing. At the same time, larger dust particles touch the walls of the dust collector and move along it down to the conical part. Smaller particles with a smaller radial component of velocity move in a downward gas flow longer than large particles and reach the inner surface of the filter insert 9 and, finally being cleaned from the smallest dust particles less than 5 microns, out through the dust-collecting chamber 4. The air flow cleared from dust, rotates 180 ° and leaves the cyclone element 7 through the exhaust pipe 10 into the gas collecting chamber 3 and is removed from the apparatus through the outlet 6.

Installing the filter element in a spiral shape will allow removing dispersed particles in the bunker in the zone with low velocities of the near-wall gas flow, which will reduce the secondary pulverization and reduce the hydraulic resistance of the cyclone, which also contributes to the quality of gas cleaning.

The proposed cyclone-type cyclone-type cyclone-filter battery allows to improve the quality of air purification, save production space, increase the service life of the filter without regeneration;

The implementation of the described signs allows you to achieve a stable degree of purification of 96%.

Claims (1)

Battery cyclone, including a housing with inlet, outlet and dust chambers, cylindrical cyclone elements with exhaust pipes and semi-woven swirlers, characterized in that in the case of cyclone elements there is a filtering polyester filter element.

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