SU1439047A1 - Hopper - Google Patents

Abstract

The invention relates to silos that provide storage and supply of bulk materials, and can be used in vibratory plants where precise metering of the material is required. The aim of the invention is the expansion of technological capabilities. In the case of the hopper with a screw tray there is a discharge window 5, provided with a shutter consisting of a horizontal disc 6 installed with the possibility of reciprocating vertical movement. A spring 9 is installed between the disk and the window so that, with the shutter open and the exciter turned off, its coils prevent material from spilling. 1 Z.P. f-ly, 3 Sh1.

Description

with so

about

four

The invention relates to silos that provide storage and supply of bulk materials, and can be used in vibratory installations where precise dosing is required.

The purpose of the invention is the expansion of technological capabilities.

Placing the spring between the disc and the opening window with the spring so that its adjacent coils are placed at a distance that prevents the material from spilling out when the vibrator is off, simplifies operation and speeds up the closing process.

FIG. 1 shows a bin in FIG. 2 - the same, top view; FIG. 3 shows the node I in FIG. one .

The bunker consists of a base 1, on which 20 by means of elastic supports 2 is installed a case 3 with a screw tray 4 and a discharge window 5. The latter has a shutter consisting of a horizontal disk 6 installed with 25 possibility of vertical, reciprocating movement, moving a screw 7 installed in the lid 8. Between the disk 6 and the discharge window 5 a spring 9 30 is installed so that its adjacent turns when the shutter is open are located one from another at a distance allowing to prevent the material from pulling out An exciter 10. In a bun, two vibrators can be mounted on the body. .

The bunker works as follows. Under the action of the helical vibrations created by the vibration exciter 1 4Id5 10, the material poured into the hopper rises through the screw tray 4 and through the discharge opening 5, through the gap between the coils of the spring 9 comes out. After the exciters 10 are stopped, when the fluidization stops, due to the fact that the cross-sectional dimensions of the coils of the spring and their pitch are chosen in such a way that the angle 50

do horizontal and tangent, pro 5

0 5 0 s 0 5 0

five

the outer side of the upper coil and the inner side of the coil adjacent to it, not more than the angle of repose of the material, the spontaneous outflow of the material through the gaps will stop,. Performance adjustment is limited within this gap.

The use of springs with a cross section of turns in the form of a parallelogram, rectangle, or triangle while maintaining the exclusion of spontaneous outflow allows to increase the inter-turn gap. In this way, the range of capacity control is increased and the range of use of the hopper is expanded due to the possibility of supplying material with larger particles. When using a conical spring, set with a large base upwards, due to the well-known feature of conical springs, more distortion occurs in the zone where the spring diameter is larger and smaller, where the diameter is smaller, allows the material, since the large pieces have the opportunity, dropping down, to pass in the zone where there is a greater inter-turn gap.

Claims (2)

1.Bunker, comprising a housing with an exciter and a screw tray, mounted on elastic supports and having an unloading discharge box with a shutter, is a horizontal disk mounted with the possibility of vertical reciprocating movement, in order to expand the technological possibilities, between the disk and the unloading window is placed a spring so that its adjacent turns when the shutter is open, they are located one from another at a distance that allows to prevent material from spilling out when the vibration exciter is turned off. 2. The bunker of claim 1, wherein, the 4JO section of the spring coils is a parallelogram, rectangle, or triangle.