SU1655300A3 - Batching slide for bulk material container - Google Patents

Abstract

In a metering closure for granular material, in particular a flat slide which is intended for a preferably vertical or slightly inclined operating position and which comprises a stationary slide frame and a movable, planar closure slide, it is provided according to the invention that the upwardly-closing closure slide has at the upper border an acute-angled cutter bend with a cutting edge, that in the open position the front edge of the slide covers horizontally and vertically the inlet edge of a metering container and that the passage cross-section is closed in a force-free manner by the formation of a slope between the material boundary edge and the closure slide plate.

Description

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The invention relates to a metering gate for a bulk material, preferably sand or gravel, and can be used in installations for the preparation of concrete.

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

FIG. 1 shows a metering slide for star-shaped containers, a general view; in fig. 2 - rear wall of the dispenser with a vertically positioned shutter, vertical section; in fig. 3 - side wall of the dispenser with inclined setting of the metering slide, vertical section; in fig. 4 - shutter in the open position, longitudinal section; figure 5 - the same, in the closed position; in fig. 6 - dispenser gate, horizontal section; in fig. 7 - the same, side view.

Partitions 1 containers 2 are located in the form of a star. The end walls of the 3 containers run vertically upwards and leave the shaft 4 free for the dispenser 5, which runs along guide 6 from its lower metering position to the discharge position. The dispenser 5 is made with the edge 7, the side entrance edge 8 and the bottom 9.

The bottom edge 7 of the dispenser 5 cuts the opening of the dispenser vertically and horizontally (Fig. 1 and 2).

Dosing shutter 10 consists of a main frame 11, built into the end wall of the box. This main frame is provided with a mounting shelf 12 for the power cylinder 13 from above and forms the lower U-shaped sealing frame 1 The sealing frame serves as a support for the elastic element 15 and the wear-resistant sealing profile 16.

At the same time, the U-frame is a support for at least two support rollers 17 sensing the outflow pressure of the dosing material. Flat gate gate 18 is made of sheet metal with a plate 19 having a cutting edge to overlap the walls of the dispenser.

In the open position 20 of the gate (Fig. 4), the plate 19 is aligned with the tray 21, which is outside the bulk material.

In the closed position 22 (Fig. 5), the upper cutting edge 23 of the plate lies at the same height as the material guide edge 24.

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On this guide edge 24, a step 25 is formed towards the gate, so that the vertical distance 26 between the base 27 of the bulk material on the gate 18 and the guide edge 24 is larger than the largest particles of the material, which prevents the material between the cutting edge 23 of the gate and the main frame 1 1.

In the open position (Fig. 4) plate 19 horizontally and vertically overlaps the rear edge 7 of the dispenser.

When the horizontal deviation 28 of the dispenser 5 rear edge 7 in the closed position (Fig. 5) of the gate passes by the front edge 29 of the gate.

Since the side bounding walls of the 3D dispenser (Fig. 3) cannot bend around the front edge 29 of the gate and pass vertically, the gate is inclined at a certain angle relative to the vertical line.

Then, in the open position, the front edge 29 of the gate overlaps the side wall 30 of the dispenser, and the bottom edge 31 of the gate does not yet touch the side wall 30 of the dispenser. In the closed position, the front edge 29 of the gate and the lower edge 31 of the gate form a horizontal slit 32.

The proposed metering gate allows the end walls of 3 containers 2 for the material to be supplied to the envelope 33 of the dispenser 5 and to be at the same time easily accessible.

In the main frame 11, the holes 34 located on both sides allow the almost worn out supporting rollers 17 to be replaced without the need for emptying the containers and removing the slide gate 18 of the closures.

Claims (3)

1. A metering valve for a container with bulk material, mainly sand and gravel, discharged into a metering device containing a fixed frame located at an angle to a horizontal plane not exceeding 90 ° in the area of the container discharge window with the upper end bent horizontally from the container having over the last fastening shelf for the power cylinder body, with the stem of which an additional frame is connected, consisting of two parts, the upper part of which is made with a hole, and the lower one is formed by a flat gate mounted with a horizontal clearance relative to the plane of the container window and vertically parallel to said plane located on both sides with respect to the gate, characterized in that, in order to increase the reliability of operation, the flat gate is made of sheet metal and at the upper end with directed at an acute angle towards the dispenser with the possibility of overlapping the dispenser wall located in the zone of the gate of the dispenser, having a cutting upper edge, guiding for the gate, from the side of the plate, are made in the form of rolling elements mounted on the main frame, and on the side of the container window, in the form of a support element with a sealing wear-resistant elastic liner, while the bent end of the frame is made with a length shorter than the horizontal gap. 2 .. The closure according to claim 1, characterized in that the rolling elements are rollers, the support element is U-shaped, and the insert is made of a rubber spring material. 3. The shutter on the PP. 1 and 2, in that the main frame is formed on two opposite sides with coaxially arranged openings. No. / L fig.Z /// /// 7/777 /// //. Schig.Z Editor N.Rogulich Compiled by N.Nikitin Tehred A. Kravchuk Proofreader A. Obruchar // Xh / 71 . / 7 „..J # # to.Ј L / 3 16 17 FIG. 7