SU935401A1 - Auger screw conveyer - Google Patents

Description

one

The invention relates to a lifting and transport machinery, in particular to screw conveyors, and can be used for transporting dust-like bulk materials from the zone of increased pressure to the zone of reduced pressure and vice versa.

A screw feeder is known, in which a rotating bolt with a slot through which the shaft is passed is mounted on the axis of the discharge chamber, while on the outer side of the bolt there are mounted lines that are installed one above the other plates connected to each other by means of a spring 1.

A disadvantage of the known feeder is the design complexity.

The closest technical solution to the invention is a screw conveyor, comprising a housing with inlet and outlet nozzles, an auger with two windings placed with a gap in the shaft, and a valve with radially arranged blades 2.

The disadvantage of such a conveyor is the complexity of the design, the large metal content and dimensions.

The purpose of the invention is to increase the reliability of the conveyor.

This goal is achieved by the fact that in a screw conveyor comprising a housing with inlet and outlet nozzles, a screw wound in it with two windings placed with a gap on the shaft, and a shutter with radially arranged blades, the latter are located in the gap between the windings, and the housing is equipped installed on both sides of the blades of two partitions with diametrically located windows.

FIG. 1 shows a screw conveyor, general view; in fig. 2 — node I in FIG. one; in fig. 3 is a section A-A in FIG. one; on 15.fig. 4 is a section BB in FIG. one.

The device comprises a housing 1 with an inlet 2 and an outlet 3 with nozzles, in which the shaft 4 is located with the windings 5 and 6 of the screw.

On the shaft between the coils 5 and 6 are fixed the blades 7, which are separated from. cavities 8 and 9 of the housing 1 with partitions 10 and 11 with windows 12 and 13. The number of blades 7 is chosen depending on the required degree of sealing and the size of windows 12 and 13. The length of the blades 7 is chosen depending on the degree of fluidity of the material being transported. The size of each zone between the windows in a perpendicular section of the conveyor is at least equal to the sector between two adjacent blades. Screw conveyor works as follows. The pulverized bulk material enters the inlet 2 and, when the shaft 4 rotates with the help of winding 5, the screw is transported along the cavity 8 of the housing 1 to the partition 10. Here the material is filled with stationary cells through the window 12 due to backwater by winding 5 and its flowability body 1 and blades 7. The blades lift the material to the zone of the window 13 of the partition 11, where due to its fluidity the material is transferred into the cavity 9 and fed into the outlet nozzle 3. Due to the tight fit of the blades 7 to the partition 10 and 11 in zones 14 and 15 and to the housing 1 and the presence of pulverized material in the chambers enclosed between the blades 7 and the housing 1, a reliable separation of the media between the cavities 8 and 9 of the housing 1 is created.

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Claims (2)

FIG. 1 This embodiment of the screw conveyor ensures reliable operation and its durability due to the elimination of the non-discharge zone and the backwater material. Claims of the invention: The screw conveyor, comprising a housing with inlet and outlet nozzles, placed therein two-wound pins arranged with a gap on the shaft, and a shutter with radially arranged blades, characterized in that, in order to increase reliability, the shutter blades are located in the gap between the windings, and the case is equipped with two partitions installed on both sides of the blades with diametrically placed windows. Sources of information taken into account during the examination 1. USSR author's certificate No. 713782, cl. In 65 G 33/00, 1978. 2. “Essential unit D-588, passport ed. V / O “Traktoroexport. with. 14-16 (prototype). / 3