SU1551633A2 - Feeder for loose materials - Google Patents

Abstract

The invention relates to the field of metallurgy, in particular to designs of feeders intended for the supply of dry, non-caking bulk materials, including lumpy and granulated into a jet of metal. The purpose of the invention is to improve the uniformity of the flow of bulk material. Bulk material is placed in a container formed by a housing 1 and a cone divider 4, inside of which a drive vertical shaft 6 is mounted coaxially with the discharge opening 3, carrying a resetting S-shaped blade 7 fixed with a gap relative to the base of the housing 1 with adjustable height. The distance between the cutting edges of the S-shaped blade D _{l is} smaller than the diameter of the base of the cone dissector D _c and larger than the diameter of the discharge opening D _o . New in the feeder is to supply it with additional blades, the configuration of which repeats the configuration of the ends of the S-shaped blade 7 attached to the ring 11 located on the upper edge of the S-shaped blade 7 coaxially with the axis of rotation. Moreover, the cutting edges of all blades are located on a circle, the diameter of which D _{l is} not less than the outer diameter of the ring. When using the feeder, the uniformity of discharge and the accuracy of dosing of the bulk material are increased due to the stable flow of the bulk material to the dropping blades from the overlying layers. 3 il.

Description

The invention relates to the dosing of bulk materials, can be applied in the metallurgical, chemical industry, in construction and other branches of the national economy and is an improvement of the invention according to the author. St. No. 1359228.

The purpose of the invention is to improve the uniformity of the feed material.

FIG. 1 shows the feeder, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The feeder for bulk materials consists of a housing 1 (Fig. 1) with internal slopes 2 and a discharge opening 3. Inside the housing 1 is placed a cone-shaped divider 4, into which is mounted a bearing unit 5. The container formed by the case with slopes and a cone-shaped divider is filled with bulk material . The vertical drive shaft 6 is rotatably fixed by a drive located in the upper part (not specified) of the housing 1 and placed inside the cone divider 4 coaxially with the discharge opening 3. In the slot of the shaft 6 a reset blade 7 is installed (Fig. 1 and 2) fixed the bottom of the nut 8 and abutting against the top of the plug-in adjustment bar 9 (Fig. 1). The reset blade 7 is an S-shaped curvilinear plate with restrictive projections 10 (Fig. 2) for centering on the drive shaft 6 (Fig. 1), while the distance between its cutting edges dfl (Fig. 1 and 3) is less than the diameter the base of the conical divider dK and larger than the diameter of the discharge opening do (Fig. 1). On the upper edge of the S-shaped blade 7 (Figs. 1 and 2) there is fixed a flat ring 11 (Fig. 2) to which the blades 12 are attached to the bottom in radial directions at equal distances from each other, the blades 12, the configuration of which repeats the configuration of the ends 5-shaped blade 7. The cutting edges of all blades are located on a circle whose diameter is equal to the distance between the cutting edges

S-shaped blade dM, not less than the outer diameter of the flat ring.

Depending on the characteristics of the material, the dropping blades 7 and 12 are installed at the required height from the bottom of the housing 1 by means of a plug-in adjustment bar 9 in the slot of the vertical shaft 6, which is driven in rotation by means of an individual drive (not specified) mounted on the housing 1. the direction indicated in FIG. 2 arrow.

The bearing bearing 5 limits the radial displacement of the shaft 6. The working surfaces of the cutting edges of the dropping blades 7 and 12 are embedded in the material to be unloaded, cut out annular arrays from it and drop them into the outlet 3. By introducing additional blades 12 into the feeder, a more uniform flow of granular material to rotating blade from the overlying layers, which creates the necessary prerequisites for

5 accurate volumetric dosing.

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Formula Invention

Feeder for bulk materials according to ed. St. No. 1359228, characterized in that, in order to increase the uniformity of the material supply, it is equipped with a ring mounted on the upper edge of the ejection blade and secured on the last side of the discharge opening with additional blades made with surfaces repeating the surface of the ejection blade, and with distances between cutting edges not less than the outside diameter of the ring.

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Claims (1)

Claim Bulk Material Feeder St. No. 1359228, characterized in that, in order to increase the uniformity of the material supply, it is equipped with a ring mounted on the upper edge of the discharge blade and additional blades fixed to the latter from the discharge opening side, made with surfaces repeating the surface of the discharge blade and with distances between the cutting edges not smaller than the outer diameter of the ring. Aa