SU55531A1 - Device for individual aspiration of machines, for example, shoe - Google Patents

Description

Usually, in shoe factories, dust and chips from milling, glass-making, rolling-out, rattling, brushing and similar machines are removed using group suction units. Such plants, however, are explosive, especially since in a mixture of dust and air in aspirated masses, reaching often explosive concentrations, sparks are always produced, exploding the entire dust-gas mixture, and the blast wave propagates extremely quickly through the ventilation system.

In addition, the amounts of air sucked away from these masks and expelled to the outside reach enormous sizes, which constitute in total enormous overhead costs.

In view of this, in such cases it is advisable to use recirculation of polluted air and especially devices for individual aspiration using a cyclone with a fabric filter inside it.

Known devices of this kind, in which to

air cleaning such filter sleeves are illuminated on the springs and mechanical drives are used to shake the sleeves, and the use of oil filters to clean the air is also known.

The proposed device for individual aspiration of shoe and similar machines also uses multiple air purification, which is returned to the production room, and this air is sucked by a fan through a cyclone and a double fabric filter (sleeve) placed inside the latter, illuminated on the springs to be able to dump the settled dust into bunker.

According to the invention, this device is distinguished by the fact that an oil filter is installed on the path of the air which is forgiving through the air hose in order to improve the cleaning of the latter, and this filter can be made in the form of a fan casing.

In FIG. 1 depicts a front view of such a device for aspiration of masin, for example, shoe:

FIG. 2 is a plan view thereof; FIG. 3 is a vertical section along the line AA of FIG. 2; FIG. 4 is a section along the line BB of FIG. 1.

The device consists of an electric motor / (Fig. 3), a fan 2, a lower chamber 4, a fabric filter 5, a metal oil filter 6 and a dust collector 7.

Fan 2 is a medium-pressure centrifugal fan without casing. The wheel is mounted directly on the motor shaft. The casing 5 simultaneously serves as the outer cylinder of the cyclone. The cloth filter 5 suspended on springs consists of two cylinders, and the outer cylinder of the cloth filter 5 simultaneously serves as the inner cylinder of the cyclone. The metal oil filter 6 simultaneously serves as a fan shroud; it has a cylindrical ring shape, with cylindrical walls made of perforated sheets.

A mixture of air and dust is sucked through the nozzle 8 and enters the cyclone 3, in which large and small chips are separated. After that, the air passes through the chamber 4 and the fabric filter 5. Separated from the dust under the influence of its own weight and air pressure, going from top to bottom, falls into the collection 7.

The cleaned air enters the suction port of the centrifugal fan 2, from where it is ejected in the radial direction. At the same time, air is dispersed through a cylindrical metal oil filter 6, which exposes the air coming out to the workshop with additional, more advanced, purification.

To periodically shake the fabric filter 5, there is a pedal 9. The metal oil filter 6 can be easily removed for washing, for which it is made of two halves.

The subject matter of the invention.

Claims (2)

1. A device for individual aspiration of machines, for example, shoes, with repeated cleaning of air returned to the production room, sucked by a fan through a cyclone and a fabric filter (sleeve) located inside the latter, suspended on springs to allow dropping settled dust into a bunker, that, on the path of the air that has passed through the sleeve, in order to perfect the latter, an oil filter is installed. 2. The form of the device according to claim 1, characterized in that the oil filter is made in the form of a fan casing. E copyright certificate V. 55531 N. Levinson ten fig1   fip4