SU1684194A1 - Feeder of loose materials - Google Patents

Abstract

This invention relates to the handling of bulk materials. The purpose of the invention is the expansion of technological capabilities by ensuring the supply of material from the low to the high pressure area and reducing the destruction of the material. The bulk material feeder comprises a housing 5 with a pair of gears 6, a loading opening 7 and a discharge opening 10. The housing 5 has slit holes 11 and a perforated tube 12 is installed. Communicated with a source of compressed gas. When the gears 6 rotate, the material is poured into their cavities from the loading opening 7 and then poured into the opening 10. Through the holes 11, the excess material is blown off by gas from the surface of the gears b teeth, and the gas jets from the tube 12 blow out the material stuck in the tooth cavities. By sealing the feeder with gearing and a gas shutter created by gas jets emanating from the holes 11 and the tube 12, the material can be overloaded from the low to the high pressure area, and the destruction of the material is reduced by removing the excess gear and residues from the gear holes. mi gas. Zil. (L S o 00

Description

The invention relates to industrial transport and can be used, for example, for unloading and loading wagons and other vehicles and containers primarily intended for transporting grain and pellets.

The purpose of the invention is the expansion of technological capabilities by ensuring the supply of material from the low to the high pressure area and reducing the destruction of the material.

Figure 1 shows the feeder in section, a general view; figure 2 is a section A-A in figure 1; on fig.Z - node I in figure 1.

The bulk material feeder is mounted on a pressure chamber 1 with means 2 for supplying pressure to it, a transport pipeline 3, the end of which is located in the pressure chamber and is equipped with an annular rubber disk 4. On top of the pressure chamber there is attached a feeder body 5 in which are engaged two drive coarse-grained cylindrical gears b (gear drive rotation not shown).

The housing 5 has a loading opening 7 of predominantly rectangular cross section, the width of which is no more than the width of the gears 6. The loading opening has a funnel 8 for directing the loading bulk material 9 to the gear 6.

The housing 5 has a discharge opening 1 in the pressure chamber 1 with a width of more than center distance of gears with a length equal to the width of gears.

In the walls of the housing 5, above the gears along the edges of the loading opening 7, there are slit-shaped channels 11, directed tangentially to the outer circumference of the corresponding gear 6. Channels 11 are connected to a source of compressed air (not shown).

In the lower part of the housing 5 between its walls at the level of the troughs of the teeth of the gears 6 there is placed a tube 12c with holes in its upper part. The perforation of the tube 12 is directed toward the valleys of the gears 6 and is made in two rows. The tube 12 from one end is plugged, and from the other it communicates with a source of compressed gas. The length of the tube 12 and channels 11 is equal to the width of the gears.

The feeder works as follows.

In order to transport the bulk material 9, it must be loaded into the chamber 1. To do this, it is poured into the housing 5 through the funnel 8 and at the same time the rotational drive of the gears 6 is switched on. The bulk material passes through the loading opening 7

fills the hollows between the gear teeth 6. When the gears rotate, their teeth move the material down the body 5 to the hole 10 where it is under its own weight and

centrifugal force is discharged into the cavity of chamber 1. Pressure 2 is applied to chamber 1 by means of 2, as a result, a layer of material 9 adjacent to the rubber disk 4 is aerated and compressed air is pushed into transport conduit 3.

When filling material 9, compressed air is fed into the charging opening 7 into the slit-like channels 11 in the walls of the housing 5, as a result, excess grain of material disposed above the tops of the gear teeth is blown out of the cavities.

Due to the fact that the discharge opening in the pressure chamber of the hole 10 in the housing 5 is made the width of a more center-to-center

0 distance, the grain of material 9 leaves the cavity of the housing 5 into the chamber 1 at an angle such that it prevents them from being caught at the bottom of the teeth and thus prevents them from engaging.

5 teeth of gears and flattening them between the teeth. Simultaneously with the supply of compressed air into the channels 11 in the walls of the housing 5 serves compressed air and into the openings of the tube 12. due to what compressed air knocks

0 the walls of the teeth and valleys of adhering grains of the material 9 and thereby excludes the ingress of such grains into the gearing of the teeth, excludes their damage.

BE. gear feeder filling

5 and the presence of channels in the housing and the perforated tube makes it possible to seal the feeder by engaging gears, which provides material overload with a feeder from the low to the high

0, and by blowing the material out of the tooth troughs with gas from the tube 12 and blowing excess material with gas from the channels 11, a reduction in the destruction of the material in the feeder is achieved.

Claims (1)

5 claims A feeder for the bulk material, comprising a housing with coaxial upper loading and lower discharge openings and two located in the housing 0 symmetrically its holes of the blade rotor mounted on the horizontal axes located at the same level and parallel to one another with the engagement of their blades, and with the fact that, with 5 expanding technological capabilities by providing material supply from low to high pressure areas and reducing material destruction, the rotors are made in the form of cylindrical gears, the feeder is provided with gears in contact with the gear teeth in parallel with the axis of the latter, which is perforated in the upper part of the section with a length equal to the width of the gears, one muffled and the other communicated with the source of compressed gas with the ends, while the body is made with two A-A located in its walls above the uieciep, along them and along their width, slit-like channels, each of which with its input end is connected to a source of compressed gas, and the output is directed to the engagement zone tangentially to the outer circumference of the gear located under it. Ш / ЖШ2% Ш4 Sssssssss  2 J j ° $ L. Ssssssv t ±: FIG. 2 four © I