SU1452558A1 - Apparatus for cleaning air - Google Patents

Abstract

The invention relates to devices for cleaning air from dust and can be used on mobile agricultural, for example cotton harvesting, machines. The goal is to increase the cleaning efficiency, reduce the dust content of the air around the cotton, harvester and in the working area of the driver. The air cleaning device is a two-stage case with a separating device installed between the stages. The first stage is made in the form of a drum rotating on the axis, on the periphery of which filter elements are installed in the form of blades mounted on axes with the possibility of rotation of a moisture-absorbing material. The second cleaning stage is made in the form of a cassette with a series of vertical Mobius filter belts mounted on pulleys with a possibility of movement. The cassette has on the outer side surface openings for the exit of the purified gas, and the separating device is made in the form of a keyboard-type bump stop. The blades can be made of individual plates installed in a staggered order in each pair of opposing axes. The axis of the blades and the pulleys of the belts are connected to a rotating drive of the drum. The device is equipped with cleaning brushes installed under each belt and an irrigation nozzle placed in front of the drum. In this case, the bunker is made in the form of a conical funnel. 6 hp f-ly, 4 ill. S (L S

Description

The invention relates to devices for cleaning air from dust and can be used on mobile agricultural, for example cotton-: harvesters, machines.

The aim of the invention is to increase: the efficiency of the device for air purification and the reduction of its gas; barites.

I FIG. shows the proposed device, a longitudinal section; in fig. 2 is a view A of FIG. one; on fig.Z - blade drum, longitudinal section; in fig. 4 is a view B in FIG. 3

The air cleaning device 1 consists of the upper air channel 1 and the plate 2 of the liquid installed above the drum 3 with the blades mi 4, and the drum rotates around I OSI 5 and the blades 4 revolve around their axes 6. The blades sealed with moisture-absorbing i material 7. Gears 8 are mounted on the axis 5 of the drum 3 I, which include IB gearing with gears 9 that are mounted on axles 6 of the blades 4. Transmission: the exact number of gearing is matched; so that when vrashen; drum drum and lo; the mouth of the stream is cleared; the air being injected is in contact with one or the other: the surface of the blades 4. The keyboard-type bump 10 serves to prevent accumulation of trash particles. the second cleaning stage, consisting of a cassette 11, inside of which filter elements 12 are installed in several rows, each of which is made in the form of an endless Mobius strip. The cleaning brushes 13 are installed in the lower part of the endless ribbons. In the lower part, the cassette 1, there is a window 14 for removing the dust collected in the picking bin 15. In the upper part of the cassette 11 there is a window for purging the filter elements 12, closed by a valve 16. On the outer side walls of the cassette 11 there are openings 17 for the exit of the cleaned air from the device. The device hopper 18 is made in the form of a conical funnel with a slope for collecting weed impurities with their subsequent periodic removal,. Drive endless belts can be carried out from the axis 5 and the pulley 19.

The cleaning device operates as follows.

Dusty airflow with weed impurities through the air channel

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1 is directed onto the paddle drum 3. The cleaned air is driven into rotational motion by the drum 3, while under the action of centrifugal and Coriolis forces, trash particles are generated from the cleaned air, thrown to the back wall of the device and, slipping along it, are rolled into the device hopper 18 . The liquid supplied through the sprayer 2 wets not only moisture-absorbing material 7, which are covered with blades 4 of drum 3, but also dry air flow, which increases the efficiency of dust deposition on the surfaces of blades 4. When rotating bar Abana 3 and blades 4, dried air contacts with one, then with the other surface of the blades 4, which allows both the surfaces of the blades 4 to be used as the working surface. Due to the centrifugal forces arising from the rotation of the drum 3 and the blades 4, the surfaces of the latter are cleaned from the deposited ennyh particles if py-. Thus, at the first stage of air purification, the dominant mechanism is the inertial separation of trash particles, and the deposition of coarse dust on the wetted surfaces of the blades 4 of drum 3 is optional. Partial sedimentation of dust on the wetted surfaces of the blades 4 reduces the dust content of the air sent to the second stage of cleaning, which increases efficiency. Each blade 4 of the drum 3 can be made of several plates. The plates are installed in a checkerboard pattern in each Kahzd pair of opposite axes (Fig. 3).

The lighter particles of trash and fluff are entrained by the air flow and hit the key type bumper 10, where the trash is trapped and dropped into the device hopper 18, where it accumulates and is periodically removed.

The air flow with a smaller compared with the initial content of the mold is directed to the second stage, where as the dusty air moves through the filtering elements 12, the airborne dust particles are trapped on the surfaces of the filtering elements 12 arranged in several rows. The arrangement of the filter elements 12 in several rows allows

increase the dust holding capacity of the filter elements 12 and increase the degree of dust collection. When the belts that are twisted along their longitudinal axis at least once are moved, both surfaces of the filter elements 12 alternately work. The dust from the surfaces of the filter elements 12 is cleaned with brushes 13, installed with I-IQ in the lower part of the belts, and collected in a straw bin 15, from where through the window 14 is removed from the cassette 11, the purified air through the holes

radiator cores are trash and reduce the laboriousness of its maintenance.

Claims (7)

Invention Formula I. A device for air purification, comprising a two-stage case with a separating device installed between the stages, the first stage is embodied as a rotating drum on the axis with a drive and filter elements and a bunker for 17 on the outer walls of the cassette 11, collect and remove impurities, from the cores of the radiator to weed impurities, and reduce the complexity of its maintenance. Invention Formula I. A device for air purification containing a two-stage case with a separating device installed between the stages, the first stage is fulfilled in the form of a rotating drum on the axis with a drive and filter elements and a bunker for walks out of the device. Additional regeneration of the filtering elements 12 is performed by blowing by opening the valve 16 of the purge port of the cartridge 11 and directing the air flow to the filtering elements 12. The blowing is performed on the headland when the machine does not remove the raw cotton and in the air duct 1 unfilled ventilation air enters. When harvesting raw cotton, the valve 16 closes the purge window of the cassette 11. To facilitate servicing, the cassette 1 1 can be made removable. To reduce the resistance to movement of the purified air in the cartridge 11, each partition can be made in the form of separate sections of endless ribbons (Fig. 2) and arranged in rows in a checkerboard sequence. The technical and economic advantages of this device are achieved by using both the drum blades and filter elements as working surfaces, self-regeneration of the working surfaces of the drum blades and filter elements, reducing the size of the device. The use of the device on cotton harvesting machines allows reducing the dust concentration in the working area of the driver-mechanic three times (improving working conditions), which has a beneficial effect on increasing labor productivity, in the area of the engine air intake, which reduces wear on parts, and in the area of the water radiator of the engine, which eliminates the clogging Of course, in order to improve the cleaning efficiency, the filter elements mounted around the periphery of the drum are made in the form of blades made of moisture-absorbing material mounted on the axis, the second stage is made in the form of a cassette with rows of vertical Mobius filter tapes, mounted on the pulleys with the possibility of movement, while the cassette has openings on the outer side surface for the exit of the cleaned gas, and the separating device is in the form of a keyboard type I 2. The device according to claim. Ij of this and that is so that the blades are made of separate plates installed in a staggered order in each pair of opposing axes. 3. A device according to claim I, characterized in that the axes of the blades are connected to a driven rotation of the drum. 4. A device according to claim 1, characterized in that the belt pulleys are connected to a driven rotation of the drum. 5. A device according to claim 1, characterized in that it is provided with cleaning brushes placed under each belt. 6. The device according to claim 1, characterized in that it is provided with a liquid dispenser installed in front of the drum. 7. The device according to claim 1, characterized in that the hopper is in the form of a funnel. / 2/3 Vida 7 And 8. uSSxSL and SU. && 2 i. UCH QQQQgIg f fi -SVSfV ly iyxxxSc xxxx 9 Fi.Z Type B